Viral Sprout

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Viral Sprout
  • Viral Sprout.png
Stack digit 1.png
Damage30 Summon
Knockback2 (Very Weak)
Mana cost10
Use time19 Average
TooltipSummons a sage spirit to fight for you
Inflicts Sage Poison, a debuff that becomes stronger the more spirits you own
Grants BuffSage Spirit (buff)Sage Spirit
Buff tooltipIt's uncomfortably close
Inflicts DebuffSage PoisonSage Poison
100% chance

Debuff duration5 seconds
Debuff tooltipPoisoned
RarityRarity Level: 7
Sell 9 Gold Coin.png 60 Silver Coin.png
Research1 required
Projectile created
Sage Needle
Sage Needle
Summons Minion
Sage Spirit
Sage Spirit.gif

The Viral Sprout is a craftable Hardmode summon weapon. When used, it summons a flower-shaped spirit that floats around the player and attacks nearby enemies by firing gravity-affected needles. When moving or attacking, the spirits will move in a group with individual circular motions and launch an even spread of three needles upwards. Needles inflict the Sage Poison debuff which deals constant damage over time, increasing in damage per second the more spirits are present.

Its best modifier is Ruthless. The Mythical modifier provides the widest array of stat bonuses, but these primarily affect the initial summon rather than the resulting minion. Additionally, minions cannot deal critical hits. The only lasting advantage a Mythical Viral Sprout has over a Ruthless one is knockback.



Crafting Station
Mythril AnvilMythril Anvil
Orichalcum AnvilOrichalcum Anvil
Perennial BarPerennial Bar12
Viral SproutViral Sprout1


  • The amount of damage per second to the following: 25 * (Minion count 0.73 + Minion count 1.1), rounded down.
    • For example, if the player had 8 spirits when the item was applied, the resulting damage per second would be 360. 25 * (80.73 + 81.1) = 360.305, rounded down.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
    • Buffed damage from 24 to 30, and increased Sage Poison's base damage per second from 10 to 25.
    • Minions now stay closer to enemies while attacking.
  • Needles no longer grant 6 local immunity frames.
  • Sage Poison debuff now scales in damage over time with the amount of minions spawned, instead of dealing a flat 45 damage per second and taking more time to deal more damage with each damage tick.
  • No longer considered a nature weapon.