Polterghast

PolterghastPhase 1

Map icon

Statistics

Type	Boss
Environment	Dungeon
Damage	150 / 240 / 264 / 280 / 384 (Contact) 140 / 240 / 264 / 280 / 396 (Blue Phantom Shot) 150 / 264 / 288 / 300 / 432 (Blue Phantom Blast)
Max Life	350,000 / 560,000 / 672,000 / 840,000 / 1,008,000
Defense	90
DR	15%
KB Resist	100%
Inflicts debuff	Moon Bite 100% chance
Debuff duration	15 seconds (Contact)
Debuff tooltip	You are unable to absorb healing effects
Inflicts debuff	Nightwither 100% chance
Debuff duration	2 seconds (Blue Phantom Blast) 1.33 seconds (Blue Phantom Shot)
Debuff tooltip	Incinerated by lunar rays
Immune to

Resistances

Cold	-
Water	-
Sickness	Resistant
Electricity	-
Heat	-

Sounds

Hurt

Spawn

Phase Transition

Phantom Blast Shot

Charge

NecroghastPhase 2

Map icon

Statistics

Type	Boss
Environment	Dungeon
Damage	180 / 288 / 316 / 336 / 460 (Contact) 150 / 264 / 288 / 300 / 432 (Red Phantom Shot) 160 / 276 / 304 / 320 / 456 (Red Phantom Blast)
Max Life	175,000 / 350,000 364,000 / 560,000 537,600 / 672,000 604,800 / 672,000 546,000 / 840,000 806,400 / 1,008,000 907,200 / 1,008,000
Defense	72
DR	20%
KB Resist	100%
Inflicts debuff	Moon Bite 100% chance
Debuff duration	15 seconds (Contact)
Debuff tooltip	You are unable to absorb healing effects
Inflicts debuff	Whispering Death 100% chance
Debuff duration	2 seconds (Red Phantom Blast) 1.33 seconds (Red Phantom Shot)
Debuff tooltip	Death approaches; attack power and life regen reduced
Immune to

Sounds

Hurt

Phase Transition

Phantom Blast Shot

Charge

NecroplasmPhase 3

Map icon

Statistics

Type	Boss
Environment	Dungeon
Damage	210 / 336 / 369 / 392 / 537 (Contact)
Max Life	70,000 / 350,000 196,000 / 560,000 336,000 / 672,000 403,200 / 672,000 294,000 / 840,000 504,000 / 1,008,000 604,800 / 1,008,000
Defense	45
DR	50%
KB Resist	100%
Inflicts debuff	Moon Bite 100% chance
Debuff duration	15 seconds (Contact)
Debuff tooltip	You are unable to absorb healing effects
Immune to

Drops

Coins	3  50

• Item (Quantity)Rate
• Ruinous Soul (7-15 / 10-20 )
  100%
• Polterplasm (30-40 / 40-50 )
  100%
• At least one of the following 7 weapons will always drop:
• Banshee Hook
  25% / 33.33%
• Daemon's Flame
  25% / 33.33%
• Ethereal Subjugator
  25% / 33.33%
• Fate's Reveal
  25% / 33.33%
• Ghastly Visage
  25% / 33.33%
• Ghoulish Gouger
  25% / 33.33%
• Terror Blade
  25% / 33.33%
• Affliction
  100%
• Supreme Healing Potion (5-15)
  100%
• Polterghast Mask
  14.29%
• Polterghast Trophy
  10%
• Thank You
  1%
• Polterghast (Lore)(Always on first kill)
  100%
• Treasure Bag(Polterghast)

  • Ectoheart(In Revengeance Mode only)

  100%
• Polterghast Relic(In Master or Revengeance Mode only)
  100% / 100%

Sounds

Hurt

Killed

Phantom Blast Shot

Charge

Phantom Spirit Spawn

Not to be confused with Poltergeist, a vanilla enemy.

"Long-dead prisoners seek their zealous revenge..."

Polterghast is a post-Moon Lord boss that can be fought in the Dungeon. While it is optional, it is highly recommended to fight it before challenging The Devourer of Gods.

Defeating Polterghast will provide the player with Ruinous Souls, a material used to craft powerful equipment. Additionally, mini bosses in the Abyss will begin dropping weapons upon its defeat, and the final tier of the Acid Rain event will become unlocked.

Summoning

Polterghast can be summoned by using a Necroplasmic Beacon in the Dungeon. Alternatively, if it has not yet been defeated in the world, it will spawn after killing 30 Phantom Spirits, which can be found in the Dungeon after Moon Lord has been defeated. After defeating it once, using a Necroplasmic Beacon becomes the only way to summon the boss.

Behavior

Polterghast behaves similarly to Plantera, chasing the player quickly while using four long appendages to grapple blocks. In the second phase, however, these appendages will detach and begin firing projectiles independently, before re-attaching in the final phase as Polterghast summons an unbound clone of itself.

If the player travels to the Surface, Polterghast will enrage, gaining a speed boost until they return. If they remain on the surface for over 10 seconds, Polterghast will accelerate away and despawn.

Phase 1 (Polterghast)

• Polterghast follows a Plantera-like behavior, placing its hooks on nearby walls to quickly pull itself towards the player.
• Polterghast alternates between moving slowly while firing a spread of 5 slow, cyan coloured Phantom Shots and moving more quickly while firing a spread of 4 fast, homing Phantom Blasts that move through blocks.
• Polterghast periodically stops shooting projectiles and glows red, positioning itself diagonally to the player before charging at them once.
• Transforms into Necroghast at 50% / 65% / 80% / 90% health.

Phase 2 (Necroghast)

• Necroghast's hooks detach from their chains, and they begin independently moving and shooting ghostly projectiles at the player.
• Necroghast moves more quickly and deals more contact damage.
• Necroghast begins firing a spread of 5 Potent Phantom Shots or Blasts, which are red projectiles that travel faster, further, and deal slightly more damage.
• Necroghast charges a second time while it is glowing red.
• Transforms into Necroplasm at 20% / 35% / 50% / 60% health.

Phase 3 (Necroplasm)

• Upon entering Phase 3, Necroplasm summons a clone of itself, as well as 3 Phantoms. The clone behaves similar to Necroplasm, staying within the hooks and alternating with Necroplasm in chasing the player, while the Phantoms orbit Necroplasm and occasionally fire Phantom Mines that gradually accelerate over time.
  • Both the Clone and the Phantoms can be killed; however, killing the clone will increase Necroplasm's aggression.
• Necroplasm's hooks move slower and less often. The chains reappear and the hooks no longer shoot projectiles.
• Necroplasm moves significantly faster and deals even more contact damage. Additionally, it fires a spread of 6 Shots every 7 seconds.
• While glowing, the clone positions itself on the other side of Necroplasm and charges up to 3 times in tandem with Necroplasm.
  • If the clone has been killed, Necroplasm charges 4 times instead, and its charges are much faster.
  • The Phantoms cannot shoot Phantom Mines while Necroplasm is charging.
• When below 10% / 20% / 35% / 45% health, Necroplasm begins summoning up to 2 Happy Phantom Spirits, which also fire ghostly projectiles at the player.
• When below 5% / 10% / 15% / 20% health, Necroplasm begins to move more quickly as a last-ditch effort to attack the player, and will also stop summoning Happy Phantom Spirits.

In Expert Mode

• Polterghast's velocity and acceleration are greater in all three phases.
• The rate Polterghast fires Phantom Shots and Phantom Blasts is increased.
  • This includes their red versions in later phases.
• Polterghast's hooks can travel further between latches.
• In its third phase, Necroplasm summons three invincible Phantoms which slowly revolve around itself. The Phantoms fire phantom orb mines which are initially slow, but quickly accelerate toward the player.
  • The phantom orb mines will not deal damage until they reach maximum velocity.

In Revengeance Mode

• Polterghast's velocity and acceleration are even greater in all three phases.
• Transitions into Phase 3 (Necroplasm) at 50% health instead of 33%.
• Spawns Happy Phantom Spirits at 33% health instead of 20%.
• Moves much faster at 10% health instead of 5% health.
• Phantoms shoot more often.

In Death Mode

• Transitions into Phase 2 (Necroghast) at 90% health instead of 80%.
• Transitions into Phase 3 (Necroplasm) at 60% health instead of 50%.
• Moves much faster at 25% health instead of 10% health.
• Phantoms Spirits shoot at an even higher frequency.
• Gains velocity and acceleration as HP decreases.
• Can hook increased distances as HP decreases.
• Hooks fire faster and more often as HP decreases.

On the For the worthy seed

• Charges twice as frequently.
• Phantoms fire twice as fast and orbit at triple speed.

Summons

Polterghast Hook

Statistics

Type	Enemy
Environment	Dungeon
Damage	0 (Contact) 140 / 240 / 264 / 280 / 396 (Hook Shot)
Max Life	50,000
Defense	50
KB Resist	0% / 10% / 20%
Inflicts debuff	Nightwither 100% chance
Debuff duration	1.33 seconds (Phantom Shot)
Debuff tooltip	Incinerated by lunar rays
Immune to	All debuffs except:

Sounds

Hurt

Killed

Phantom Blast Shot

PolterghastClone

Map icon

Statistics

Type	Flying Enemy
Environment	Dungeon
Damage	210 / 336 / 360 / 392 / 528
Max Life	62,500 / 100,000 / 120,000 / 150,000 / 180,000
Defense	45
DR	10%
KB Resist	100%
Inflicts debuff	Moon Bite 100% chance
Debuff duration	6 seconds (Contact)
Debuff tooltip	You are unable to absorb healing effects
Immune to	All debuffs except:

Resistances

Cold	-
Water	-
Sickness	Resistant
Electricity	-
Heat	-

Sounds

Hurt

Killed

Charge

Phantom

Statistics

Type	Flying Enemy
Environment	Dungeon
Damage	0 (Contact) 170 / 296 / 324 / 340 / 462 (Phantom Mine)
Max Life	17,500 / 22,500 / 37,500
Defense	45
DR	10%
KB Resist	100%
Inflicts debuff	Nightwither 100% chance
Debuff duration	2 seconds (Phantom Mine)
Debuff tooltip	Incinerated by lunar rays
Inflicts debuff	Whispering Death 100% chance
Debuff duration	3 seconds (Phantom Mine)
Debuff tooltip	Death approaches; attack power and life regen reduced
Immune to	All debuffs except:

Resistances

Cold	-
Water	-
Sickness	Resistant
Electricity	-
Heat	-

Sounds

Hurt

Killed

Phantom Blast Shot

Image	Name	Condition
	Happy Phantom Spirit	Phase 3

Aftermath

• After Polterghast has been defeated, a message will say, "The abyssal spirits have been disturbed."
• New content in the Sulphurous Sea and the Abyss will become unlocked:
  • The third tier of the Acid Rain and all of its associated content will become available.
  • The Reaper Shark will begin dropping Reaper Teeth, the Valediction, and Deep Sea Dumbbell.
  • The Eidolon Wyrm will begin dropping the Eidolic Wail, the Soul Edge and the Eidolon Staff.
  • The Colossal Squid will begin dropping Calamari's Lament.
  • The Bobbit Worm will begin dropping the Bobbit Hook.
• Dungeon Crates will contain Polterplasm, and Sulphurous Crates will contain Reaper Teeth if The Old Duke has also been defeated.
• The Cyborg will begin selling the Lion Heart.

Notes

• Polterghast moves faster if it is currently inside tiles.
• Polterghast will turn red and the clone will briefly turn invisible when preparing a charge.

Tips

For more elaborate strategies on defeating Polterghast, including weapon and arena recommendations, see Guide:Polterghast strategies.

• Polterghast has similar AI to Plantera, which means that movement strategies used during that boss fight may work here as well.
• Slowing down and observing how Polterghast behaves shortly before each of its telegraphed dashes would help dodging it, as the boss will only dash diagonally from where it is positioning itself relative to the player.
  • For phase 3 especially, dodging towards an axis parallel to where Polterghast and its clone line up would make dodging both a lot easier.
• Don't rush too much when fighting its last form. The chaotic activity can easily overwhelm the player if they're careless. Take your time and be careful when dodging.
• Polterghast can be fought before any post-Moon Lord boss is defeated, although it is highly recommended to defeat Providence and the Rune of Kos bosses first. Polterghast's high speed, damage, and projectiles can easily overwhelm an unprepared player.

Trivia

• The Bestiary entry for Polterghast: "The feral amalgamation that drove out the cult that once dwelled here, and inadvertently broke an alliance thought to be eternal. Many have delved into the dungeon in search of riches and knowledge long since lost, yet most simply join the spirits that have claimed this place as their own."

• Polterghast's theme is Feral Amalgamation, which was made by the artist DM DOKURO.
  • If the Calamity Music add-on mod is disabled, Plantera's theme will play instead.
  • Polterghast's theme used to be Ruin, a remix of "In the Hall of the Mountain King" from the game The End is Nigh.
• Polterghast's clone in Phase 3 was inspired by Pontiff Sulyvahn, a boss from the game Dark Souls III.
• The boss's multiple names are the result of a disagreement between the boss's spriter, LordMetarex, and the lead developer, Fabsol/MountainDrew. The spriter was naming his files ‘Necroplasm' and was using it as the official name for the boss. During a spoiler, the official name was revealed to be ‘Polterghast'. After an argument the developer decided to use ‘Polterghast' for the first phase and ‘Necroplasm' for the last phase. ‘Necroghast', being a combination of the two names, was used for phase two.
  • ‘Polterplasm' is used in the Get fixed boi seed upon reaching low health, it is also a combination of two names, an inversion of ‘Necroghast'.
• Polterghast can be summoned after the Moon Lord is defeated, as Phantom Spirits begin spawning and its summoning item only requires Wood and Polterplasm.
• If the Boss Checklist Mod is installed, its unique despawn message will be "The volatile phantasm disperses in an echoing wail."
• In the mod's source files, Phantoms are referred to as 'PhantomFuckYou'.

History

edit

These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.

• 2.0.3.005:
  • Decreased phantom blast and phantom mine Nightwither duration from 3 seconds to 2.
  • Decreased phantom shot Nightwither duration from 2 seconds to 1.33.

• 2.0.3.002:
  • No longer gains increased aggression level depending on the amount of surrounding tiles, with its current base aggression level being increased to match its previous 50% tile aggression level.
  • Phantom is now affected by the Boss Health Boost Percentage configuration option.

• 2.0.3.001:
  • Changed clone health from 35,000 / 72,000 / 120,000 / 144,000 / 108,000 / 180,000 / 216,000 to 62,500 / 100,000 / 120,000 / 150,000 / 180,000 .
  • Nerfed Phantom's health from 17,500 / 22,500 / 37,500 / 45,000 to 17,500 / 22,500 / 37,500 .
  • Clone is no longer trackable by the vanilla boss health bar.

• 2.0.2.002:
  • Changed Boss Checklist Mod despawn message from "The volatile spirits disperse throughout the depths of the dungeon." to "The volatile phantasm disperses in an echoing wail."
  • It, Phantom Hook, Polterghast Clone and Phantom now properly display vanilla debuff colors and Hunter Potion effects.

• 2.0.1.002: Added boss spawning, phase transition, Phantom Spirit spawning and hit sounds.

• 1.5.1.003: Now drops 3  50 .

• 1.5.1.001:
  • Buffed Blue Phantom Blast damage from 140 / 240 / 264 / 280 to 150 / 264 / 288 / 300 .
  • Buffed Blue Phantom Shot damage from 120 / 192 / 212 / 224 to 140 / 240 / 264 / 280 .
  • Buffed Phantom contact damage from 150 / 260 / 288 / 304 to 160 / 276 / 304 / 320 .
  • Buffed Phantom Hook Shot damage from 120 / 192 / 212 / 224 to 140 / 240 / 264 / 280 .
  • Buffed Phantom Mine damage from 160 / 276 / 304 / 320 to 170 / 296 / 324 / 340 .
  • Buffed Red Phantom Blast damage from 150 / 260 / 288 / 304 to 160 / 276 / 304 / 320 .
  • Buffed Red Phantom Shot damage from 130 / 212 / 236 / 248 to 150 / 264 / 288 / 300 .
  • No longer reduces the effectiveness of Cursed Inferno's damage reduction loss.
  • Necroplasm and its clone no longer charge predictively in Revengeance or Death Mode.
  • Phantoms can now be damaged. Buffed health from 1500 to 8750 / 11,250 / 18,750 / 22,500 , damage reduction from 0% to 10%, and defense from 0 to 45. Increased Phantom Mine's acceleration by 9.5% and increased tile enrage effect on Phantom Mines by 50%.
  • Polterghast clone can now be damaged. Nerfed health from 130,000 / 208,000 / 240,000 to 35,000 / 72,000 / 120,000 / 144,000 . Buffed damage reduction from 0% to 10% and defense from 0 to 45.
    • Defeating the clone will increase the number and spread of projectiles, the projectile firing rate, charge velocity and acceleration, and amount of charges.
  • It, its clone, and Phantoms are now resistant to sickness debuffs.
  • Now drops Affliction regardless of world difficulty.

• 1.5.0.002: Map icon now rotates alongside the boss.

• 1.5.0.001:
  • Added a separate map icon for Necroplasm.
  • Nerfed health from 412,500 / 660,000 / 792,000 to 350,000 / 560,000 / 672,000 .
  • Nerfed Boss Rush health from 3,250,000 / 5,200,000 to ​​325,000 / 520,000 .
  • No longer immune to any debuffs except Confused, Pearl Aura, Nightwither, and Whispering Death.
  • Phantom Shot projectiles can no longer bounce off of tiles.
  • Mine projectiles now use a circular hitbox.
  • When it or its clone is moving slowly, its core will now change from red to black.
  • Now sticks to a charge location once it finds one and will now wait for 15 frames before charging.
  • Will now look in the direction it is about to charge in.
  • Increased tile detection enrage by 20%.
  • Can no longer become enraged during Boss Rush.
  • Now takes 90% damage from Time Bolt, and 75% damage from Grand Dad.
  • Now drops 30-40 / 40-50 Phantoplasm instead of 10-20 / 20-30 .
  • Phantom Shot projectiles now inflict Whispering Death for 2 seconds on hit. Phantom Hook Shot projectiles now inflict Nightwither for 2 seconds on hit.
  • Now drops Supreme Healing Potions.

• 1.4.5.004: Clone now turns invisible, except for a red glowmask for its heart and veins, to convey that it's not dealing contact damage while it lines up for a charge.

• 1.4.5.003:
  • Nerfed base contact damage from 150 / 240 / 300 / 345 to 150 / 240 / 264 / 280 .
  • Nerfed Necroghast contact damage from 180 / 288 / 360 / 414 to 180 / 288 / 316 / 336 .
  • Nerfed Necroplasm contact damage from 210 / 336 / 420 / 483 to 210 / 336 / 369 / 392 .
  • Nerfed clone damage from 210 / 336 / 420 / 483 to 210 / 336 / 360 / 392 .
  • Buffed Blue Phantom Shot damage from 120 / 192 / 211 / 222 to 120 / 192 / 212 / 224 .
  • Buffed Blue Phantom Blast damage from 140 / 240 / 264 / 278 to 140 / 240 / 264 / 280 .
  • Buffed Red Phantom Shot damage from 130 / 212 / 233 / 245 to 130 / 212 / 236 / 248 .
  • Buffed Red Phantom Blast damage from 150 / 260 / 286 / 301 to 150 / 260 / 288 / 304 .
  • Buffed Phantom Mine damage from 150 / 260 / 286 / 301 to 150 / 260 / 288 / 304 .
  • Buffed Hook Phantom Shot damage from 120 / 192 / 211 / 222 to 120 / 192 / 212 / 224 .
  • Adjusted tile enrage to affect its projectiles more.
  • Now charges towards the player at certain intervals.
  • Phantom blasts no longer home in and instead accelerate over time.
  • Mines no longer deal any damage until they've reached max velocity, and mine velocity is now affected by tile enrage.
  • How often hooks move is now based on how close the player is to them.
  • Hooks can fire projectiles again.
  • Now enters Phase 3 at 60% health instead of 80% in Death Mode.
  • Fixed a bug that caused its attacks to desync in multiplayer.

• 1.4.5.002: Reduced tile enrage requirement by 25%.

• 1.4.5.001:
  • Boss fight has been reworked; now much more aggressive.
  • Blue and red phantom projectiles now inflict Nightwither and Whispering Death respectively. Projectile patterns have also been adjusted to make the fight more fair.
  • Both it and its clone can now inflict Moon Bite on contact.
  • Phantoms now orbit Polterghast itself instead of the player.
  • No longer immune to Betsy's Curse or Ichor.

• 1.4.4.001: It and its Hooks now have glowmasks.

• 1.4.3.002:
  • Buffed phase 1's damage reduction from 10% to 15%, phase 2's damage reduction from 15% to 20%, and phase 3's damage reduction from 35% to 50%.
  • Clone is now invincible.
  • No longer gains damage reduction while its clone is alive.
  • Increased Ruinous Soul drop count from 5-8 / 6-10 to 7-15 / 10-20 .
  • Will now despawn if it can't find a target.
  • It and its clone are no longer immune to Celled, Daybroken, or Oiled.

• 1.4.3.001:
  • Nerfed Polterghast's contact damage from 150 / 240 / 300 / 345 to 150 / 240 / 264 / 278 .
  • Nerfed Necroghast's contact damage from 180 / 288 / 360 / 413 to 180 / 288 / 316 / 334 .
  • Nerfed Necroplasm's contact damage from 210 / 336 / 420 / 482 to 210 / 336 / 369 / 389 .
  • Nerfed clone Polterghast's damage from 210 / 336 / 420 / 482 to 210 / 336 / 369 / 389 .
  • Nerfed blue shot damage from 120 / 192 / 240 / 276 to 120 / 192 / 211 / 222 .
  • Nerfed red shot damage from 130 / 212 / 265 / 304 to 130 / 212 / 233 / 245 .
  • Nerfed blue blast damage from 140 / 240 / 300 / 345 to 140 / 240 / 264 / 278 .
  • Nerfed red blast damage from 150 / 260 / 325 / 373 to 150 / 260 / 286 / 301 .
  • Nerfed hook shot damage from 120 / 192 / 240 / 276 to 120 / 192 / 211 / 222 .
  • Nerfed Phantom's mine damage from 150 / 248 / 310 / 356 to 150 / 248 / 272 / 287 .
  • Can now charge at the player in all phases.
  • Slightly nerfed projectile speed of Polterghast Hook Shots.
  • Slightly nerfed charge speed in Phases 3-5 in Expert Mode and Boss Rush.
  • Now fires a spread of 4 Phantom Shots in Phases 3-5.
  • Phantom Shots no longer accelerate.
  • Phantoms now gradually rotate faster as Polterghast's health lowers.
  • Decreased limit of Happy Phantom Spirit spawns in Revengeance Mode from 3 to 2.
  • Death Mode changes:
    • Transitions into Phase 2 below 90% health instead of 75%.
    • Transitions into Phase 3 below 80% health instead of 50%.
    • Transitions into Phase 4 below 50% health instead of 33%.
    • Transitions into Phase 5 below 25% health instead of 10%.
    • Decreased Phantom's projectile firing rate.
    • Decreased Polterghast Hook's maximum speed and firing rate.
    • Polterghast Hooks move at the highest speed immediately, instead of gradually speeding up as health lowers.

• 1.4.2.106:
  • Buffed Boss Rush health from 2,500,000 / 4,000,000 / 4,480,000 to 3,250,000 / 5,200,000 / 5,600,000 .
  • Nerfed base defense from 150 to 90.
  • Buffed blue Phantom Shot damage from 110 / 184 to 120 / 192 , and blue Phantom Blast damage from 120 / 204 to 140 / 240 .
  • Buffed red Phantom Shot damage from 120 / 196 to 130 / 212 , and red Phantom Blast damage from 130 / 212 to 150 / 260 .
  • Buffed Polterghast's Hook's health from 50,000 to 100,000.
  • Nerfed Polterghast's Hook's Phantom Shot damage from 240 to 192 .
  • Buffed Phantom's health from 1500 to 1500 / 3000 .
  • Buffed Phantom's Phantom Mine damage from 140 / 232 to 150 / 248 .
  • Now drops 10-20 / 20-30 Phantoplasm.
  • The Reaper Shark's roar will now play when defeated for the first time.

• 1.4.2.105:
  • Hooks no longer have additional health boosts in Revengeance and Death Mode, no longer has any defense, and no longer deals contact damage at all.
  • Hooks now only fire projectiles in phase 2.
  • Phantom Blasts now pierce through the player.
  • Phantom Shots now accelerate slower.
  • Phantoms now fire more frequently.
  • Decreased aggressiveness.
  • The clone now has its own health bar.

• 1.4.2.104: Improved despawn behavior.

• 1.4.2.103: Now only enrages when taken to the surface.

• 1.4.2.102: Decreased overall aggressiveness, especially during its enrage.

• 1.4.2.101:
  • Decreased first phase's speed.
  • Phantom shots now despawn quicker but are faster.

• 1.4.2.002: Fixed an error where the internal value for it wasn't resetting.

• 1.4.2.001:
  • Nerfed health from 550,000 / 880,000 / 1,056,000 / 1,408,000 to 412,500 / 600,000 / 792,000 / 1,056,000 .
  • Nerfed Boss Rush health from 7,000,000 / 11,200,000 / 12,160,000 to 2,500,000 / 4,000,000 / 4,480,000 .
  • Nerfed clone's Boss Rush health from 1,700,000 / 2,720,000 / 3,360,000 to 900,000 / 1,440,000 / 1,760,000 .
  • Decreased minimum coin drop count from 1  20 to 60 .
  • Ichor no longer affects specialized damage resistance formula.
  • Hook phantom shots now use custom projectiles.
  • Projectiles now have more descriptive names.
  • Now has gores.
  • Clone can no longer be lifestealed off of.
  • Fixed clone exponentially gaining contact damage while outside of the Dungeon.

• 1.4.1.003:
  • Buffed health from 440,000 / 704,000 / 816,000 / 1,128,000 to 550,000 / 880,000 / 1,056,000 / 1,408,000 , and Boss Rush health from 6,000,000 / 9,600,000 / 10,560,000 to 7,000,000 / 11,200,000 / 12,160,000 .
  • Decreased minimum coin drop amount from 5 to 1  20 .

• 1.4.1.001:
  • Buffed Boss Rush health from 5,400,000 / 8,640,000 / 9,600,000 to 6,000,000 / 9,600,000 / 10,560,000 .
  • Buffed clone's Boss Rush health from 1,500,000 / 2,400,000 / 3,040,000 to 1,700,000 / 2,720,000 / 3,360,000 .
  • Buffed Boss Rush damage modifier from 1.75x to 2x.
  • Hooks now fire phantom shots less frequently.
  • It, its clone, and its hooks now only inflict Horror in Revengeance Mode.
  • It and its clone no longer take 12.5% damage from Crystal Bullet shards, Holy Arrow stars, split Terra Arrows, and split Terra Bullets.
  • It and its clone no longer take 50% damage from ranged projectiles while Vortex armor's stealth ability is active.
  • Now has gores.

• 1.4.0.002: Fixed enraged boss gaining exponential amounts of defense and contact damage.

• 1.4.0.001:
  • Buffed health from 420,000 / 672,000 / 784,000 / 1,064,000 to 440,000 / 704,000 / 816,000 / 1,128,000 .
  • Lowered resistance to Ichor slightly.
  • Fixed a sheeting error.

• 1.3.4.101:
  • Buffed health from 300,000 / 480,000 / 560,000 / 760,000 to 420,000 / 672,000 / 784,000 / 1,064,000 .
  • Nerfed damage reduction in phase 1 from 50% to 10%, in phase 2 from 55% to 15%, and in phase 3 from 60% to 20%. Still has 90% damage reduction while the clone is alive.
  • Resprited Necroplasm.

• 1.3.4.001:
  • Nerfed health from 330,000 / 528,000 / 560,000 / 1,000,000 to 300,000 / 480,000 / 560,000 / 760,000 .
  • It and its clone are longer immune to Abyssal Flames, Demon Flames, God Slayer Inferno, Nightwither, or Shred.
  • It and its clone now take 12.5% damage from Crystal Bullet shards, Holy Arrow stars, split Terra Arrows, and split Terra Bullets instead of 25%.
  • Tweaked damage resistance formula.

• 1.3.3.011:
  • Now takes 25% damage from Crystal Bullet shards, Holy Arrow stars, split Terra Arrows, and split Terra Bullets.
  • Can now drop a Polterghast Trophy.
  • Polterghast's clone now takes 50% damage if the player has Vortex armor's stealth active and 25% damage from Crystal Bullet shards, Holy Arrow stars, split Terra Arrows, and split Terra Bullets.

• 1.3.3.001:
  • Buffed Polterghast Hook's health from 20,000 to 50,000 / 60,000 / 100,000 .
  • Now spawns a clone in phase 3.
  • No longer fires shots in phase 3.
  • Polterghast Hooks will now detach in phase 2, and periodically open up and fire phantom shots.
  • 3 Phantoms will now spawn and orbit the player closely instead of a single Phantom keeping a distance from the player.
  • Blue phantom shots now bounce 4 times instead of 2, and pink phantom shots now bounce 5 times instead of 3.

• 1.3.2.001:
  • Nerfed contact damage from 200 / 320 to 150 / 240 .
  • Nerfed dart damage from 240 / 300 / 315 / 450 to 110 / 184 / 193 / 276 .
  • Nerfed blast damage from 260 / 340 / 357 / 510 to 120 / 204 / 214 / 306 .
  • Nerfed red dart damage from 300 / 340 / 357 / 510 to 120 / 196 / 205 / 294 .
  • Nerfed red blast damage from 320 / 380 / 399 / 570 to 130 / 216 / 226 / 324 .
  • Nerfed Polterghast Hook's damage from 180 / 252 / 264 / 378 to 120 / 168 / 176 / 252 .
  • Nerfed Phantom's phantom mine projectile damage from 320 / 380 / 399 / 570 to 140 / 232 / 243 / 348 .
  • Now spawns more phantom mines.
  • Resprited Phantom Mine.

• 1.3.0.001:
  • Nerfed base contact damage from 215 / 344 to 200 / 320 .
  • Nerfed hook damage from 220 / 308 to 180 / 252 .
  • Lowered the amount of contact damage it gains each phase.
  • Lowered the amount of Phantom Turrets it spawns from 3 / 2 to 2 / 1 .
  • Now spawns 3 / 2 Happy Phantom Spirits instead of 5 / 3 normal ones.
  • Now sends a status message upon its first defeat, signaling that certain Abyss enemies gain new drops.

• 1.2.4.101:
  • Buffed Death Mode health from 672,000 to 1,000,000 .
  • Normal phantom shots no longer bounce 2 extra times in Death Mode.
  • Red phantom shots no longer bounce 3 extra times in Death Mode.
  • Now drops Ectoheart in Revengeance Mode.

• 1.2.4.001: Now immune to Exo Freeze.

• 1.2.3.008:
  • Now drops 5-9 / 6-11 Ruinous Souls instead of 12-19 / 15-21 .
  • Phantoms now spawn phantom mines.

• 1.2.3.005: Phantom shots now pierce 4 times in Death Mode, but now pierce twice in every other mode instead of 4 times in all modes.

• 1.2.3.002:
  • Now gets 672,000 health in Death Mode.
  • Laser arms now spawn in phase 2 instead of phase 3 in Death Mode.

• 1.2.3.001:
  • Buffed health from 260,000 / 416,000 / 448,000 to 330,000 / 528,000 / 560,000 , and base contact damage from 175 / 280 / 350 to 215 / 344 / 430 .
  • Buffed phantom shot damage from 130 / 260 / 325 to 240 / 300 / 375 .
  • Buffed phantom blast damage from 170 / 340 / 425 to 260 / 340 / 425 .
  • Buffed red phantom shot damage from 150 / 300 / 375 to 300 / 340 / 425 .
  • Buffed red phantom blast damage from 190 / 380 / 475 to 320 / 380 / 475 .
  • Phantom shots now bounce 4 times instead of 3.
  • Red phantom shots now bounce 6 times instead of 8.
  • Now summons fewer Phantom Spirits.
  • Each phase now deals more contact damage.
  • Orbiting Phantoms now rotate slower.
  • Increased despawn timer by 5 seconds.
  • Fixed chains not drawing correctly when under high stress.

• 1.2.2.007: Now has a despawn timer, which will force the boss to flee if it is enraged for too long.

• 1.2.2.001:
  • Now cancels Rain if it is currently occurring.
  • No longer naturally spawns if it has been defeated prior or if no players are alive.
  • Nerfed hook contact damage from 250 / 350 / 437 to 200 / 280 / 350 .
  • Lowered hook speed.

• 1.2.1.005:
  • Polterghast Hooks now use an immunity frame cooldown slot of 1 instead of the default 0.
  • Polterghast now uses the default immunity frame cooldown slot of 0, instead of 1.

• 1.2.1.004: Nerfed health from 310,000 / 496,000 / 512,000 to 260,000 / 416,000 / 448,000 .

• 1.2.1.003:
  • Nerfed health from 335,000 / 536,000 / 560,000 to 310,000 / 496,000 / 512,000 .
  • Phantom lasers now produce dust differently.

• 1.2.1.002: Buffed base damage reduction from 40% to 45%, and damage reduction when below 50% health from 50% to 55%. Nerfed damage reduction below 25% health from 70% to 65%, and damage reduction when below 20% health in Revengeance Mode from 80% to 75% .

• 1.2.1.001:
  • Nerfed health from 465,000 / 744,000 / 800,000 to 335,000 / 536,000 / 560,000 .
  • No longer has a DPS cap.
  • Tweaked specialized damage resistance formula.
  • Fixed it being unable to despawn properly.

• 1.2.0.004:
  • Buffed base contact damage from 125 / 200 to 175 / 280 , and increased all health-based contact damage boosts.
  • Buffed Phantom laser damage from 204 / 320 to 240 / 400 .
  • Blue Phantom Shots now bounce 5 times instead of 3, and no longer decay in damage every time they bounce.
  • Red Phantom Shots now bounce 8 times instead of 5.
  • Phantom lasers now last longer and have more visible dust.
  • Tweaked specialized damage resistance formula.

• 1.2.0.002:
  • Buffed base contact damage from 100 / 160 to 125 / 200 , Necroghast's contact damage from 120 / 192 to 150 / 240 , and Necroplasm's contact damage from 220 / 352 to 250 / 400 .
  • Nerfed Necroplasm's defense from 600 to 400.
  • Buffed blue phantom shot damage from 100 / 200 to 110 / 220 , and blue phantom blast damage from 120 / 240 to 130 / 260 .
  • Buffed red phantom shot damage from 120 / 240 to 130 / 260 , and red phantom blast damage from 130 / 260 to 140 / 280 .
  • Buffed Polterghast Hook damage from 190 / 266 to 250 / 350 .
  • Buffed Phantom projectile damage from 124 / 200 to 204 / 320 .
  • Now takes up 50 NPC slots instead of 25.
  • Increased resistance to Ichor.
  • Added a Boss Checklist entry.
  • Fixed Polterghast Hooks not despawning correctly.

• 1.2.0.001: Introduced.