History:Primordial Wyrm

Main article: Primordial Wyrm

• 2.0.3.001:
  • Renamed from "Adult Eidolon Wyrm" to "Primordial Wyrm".
  • Added new charging and death sounds.
  • Buffed health from 2,415,000 / 3,864,000 / 4,636,800 / 5,796,000 / 6,955,200 to 2,500,000 / 4,000,000 / 4,800,000 / 6,000,000 / 7,200,000 .

• 2.0.2.002: Now properly displays vanilla debuff colors and Hunter Potion effects.

• 2.0.2.001: Changed Bestiary entry from "Traces of them appear even in records going back to before the Golden Age of Dragons… They may very well be a glimpse into the full potential of nature." to "Traces of them appear even in records as far back as the early Draconic Era... They may very well be a glimpse into the full potential of nature."

• 1.5.1.003:
  • Buffed health from 2,012,500 / 3,220,000 / 3,864,000 to 2,415,000 / 3,864,000 / 4,636,800 .
  • No longer gains 90% damage reduction while outside layer 4 of the Abyss.
  • Can now be damaged while invisible.

• 1.5.1.001:
  • Renamed from "Eidolon Wyrm (adult)" to "Adult Eidolon Wyrm".
  • Nerfed health from 2,100,000 / 3,360,000 / 3,864,000 to 2,012,500 / 3,220,000 / 3,864,000 .
  • No longer reduces the effectiveness of Cursed Inferno's damage reduction loss.
  • No longer immune to damage over 10% of its health.
  • Increased speed while despawning by 50%.
  • Spawns one more Eidolist, two more Ancient Dooms, moves 33.33% faster, and can push the player while enraged.
  • Nerfed speed of charges, lightning strikes, and ice mists while not enraged but buffed the speed while enraged.
  • No longer starts rain when spawned.
  • Now vulnerable to electricity and sickness debuffs, but resistant to water and heat debuffs.
  • Now drops 50-108 / 65-135 Lumenyl at a 100% chance instead of 50-108 at a 100% chance with a 50% chance to drop an extra 15-27 in Expert Mode.

• 1.5.0.002: Fixed a bug that prevented it from being flagged as dead on multiplayer.

• 1.5.0.001:
  • Now classified as a Superboss.
  • Buffed health from 1,000,000 / 2,000,000 to 2,100,000 / 3,360,000 / 3,864,000 .
  • Nerfed head defense from 3000 to 700 and damage reduction from 99.99999% to 40%.
  • AI has been completely overhauled:
    • Now has two phases, each phase will consist of several attacks.
    • Will always chase and occasionally lunge towards the player.
    • In phase 1:
      • After three lunges have been performed lightning projectiles will be rained down on the player.
      • After four lunges are performed, it will spawn in a Eidolon Wyrm.
      • After seven lunges are performed, it will fire three barrages of Ice Mist projectiles from below the player.
      • After eight lunges are performed, it will rapidly dash into the player and spawn in five Eidolists.
      • After nine lunges the counter is reset.
    • At 50% health, it will enter phase 2:
      • After three lunges are performed, it will spin around the player's last position and will consecutively fire shadowflame fireballs towards the center. If the player is not being spun around, these projectiles travel 50% faster.
      • After four lunges are performed, lightning projectiles will be rained down on the player.
      • After seven lunges are performed, it will spawn seven Ancient blasts that will circle the player's last position and explode three times. Each time an ancient blast projectile explodes, it releases four ancient blast shards.
      • After nine lunges are performed, it will again fire three barrages of Ice Mist projectiles from below the player. After nine lunges the counter is reset.
  • AI is now affected by difficulty changes.
  • Now has a map icon.

• 1.4.5.002: No longer drops Lumenyl pre-Calamitas or Ectoplasm pre-Plantera.

• 1.4.5.001:
  • Now picks an area to swim around in when it spawns. Movement has been adjusted to be more natural.
  • Now swims down and despawns after killing the player.

• 1.4.2.108:
  • An audio cue is now played when it targets and attacks a player.
  • Fixed a bug with its multiplayer targeting.

• 1.4.2.101: Now has a immunity frame cooldown slot of 1.

• 1.4.2.002: Increased Halibut Cannon drop rate from 10% to 100% .

• 1.4.1.003: Decreased minimum coin drop amount from 25 to 10 .

• 1.4.1.001:
  • Buffed contact damage from 1100 / 1500 to 1500 / 3000 .
  • No longer inflicts Horror and Marked for Death in Normal and Expert Mode.
  • Ice mists now inflict Frozen, Chilled, and Frostburn.
  • Lightning orbs now inflict Electrified.
  • Now has gores.
  • Resprited.

• 1.3.4.101: Can now drop 80-101 Voidstone.

• 1.3.4.001:
  • Can now drop Halibut Cannon at a 10% chance.
  • Nerfed health from 30,000,000 / 60,000,000 to 1,000,000 / 2,000,000 .

• 1.3.3.011:
  • No longer produce dust and is no longer slightly transparent.
  • Buffed damage reduction from 50% to 99.9999%.
  • Resprited.

• 1.3.3.001: Now takes 50% damage from most vanilla minions if the player is wearing Statis' Belt of Curses.

• 1.3.2.001:
  • Buffed health from 3,000,000 / 6,000,000 to 30,000,000 / 60,000,000 , defense from 300 / 600 to 3000 / 6000 , and ice projectile's damage from 240 / 360 / 540 to 300 / 400 / 600 .
  • Can now be detected by the Lifeform Analyser and its upgrades.

• 1.3.1.001:
  • Buffed damage reduction from 40% to 50%.
  • Can no longer naturally spawn if any other Abyss minibosses are currently alive.

• 1.3.0.001: Introduced.