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Aquatic Scourge
Aquatic Scourge.png
Statistics
TypeBossBurrowing Enemy
EnvironmentSulphurous Sea
AI TypeAquatic Scourge AI
Max Life73,000 / 116,800 / 136,000
KB Resist100%
Immune toAll debuffs except:
Shellfish ClapsEnragedKami Flu
Drops
Coins15 Gold Coin
Aquatic Scourge map.png
Map Icon
If you were looking for something other than the Aquatic Scourge, see Scourge (disambiguation).

Aquatic Scourge Trophy.png "A horror born of pollution and insatiable hunger..." Aquatic Scourge Trophy.png

The Aquatic Scourge is a boss that can be fought in the Sulphurous Sea biome at any point in the game, but is intended to be fought during Hardmode. Being the hydrated and mutated version of the Desert Scourge, they possess similarities in their drops but significant differences in their behavior.

Spawn[]

The Aquatic Scourge spawns naturally, albeit rarely, in the Sulphurous Sea. It can be summoned manually by using the Seafood at any time.

Segments[]

Aquatic Scourge Head
Aquatic Scourge Head.png
Statistics
TypeBossBurrowing Enemy
EnvironmentSulphurous Sea
AI TypeAquatic Scourge AI
Damage0 (Passive)
80 / 176 / 187 / 198 (Contact)
60 / 100 / 125 / 143 (Tooth)
56 / 92 / 116 / 128 (Sand Blast)
66 / 112 / 128 / 140 (Sulphur Cloud)
Max Life73,000 / 116,800 / 136,000
Defense20
DR10%
KB Resist100%
Inflicts debuffBleedingBleeding
100% chance
Debuff duration6 seconds
Debuff tooltipCannot regenerate life
Inflicts debuffVenomVenom
100% chance
Debuff duration6 seconds (Contact)
5 seconds (Sulphur cloud)
Debuff tooltipLosing life
Aquatic Scourge Body
Aquatic Scourge Body.png
Statistics
TypeBossBurrowing Enemy
EnvironmentSulphurous Sea
AI TypeAquatic Scourge AI
Damage0 (Passive)
65 / 104 / 128 / 136 (Contact)
60 / 100 / 120 / 132 (Tooth)
Max Life73,000 / 116,800 / 136,000
Defense35
DR5%
KB Resist100%
Inflicts debuffBleedingBleeding
100% chance
Debuff duration3 seconds
Debuff tooltipCannot regenerate life
Inflicts debuffVenomVenom
100% chance
Debuff duration3 seconds
Debuff tooltipLosing life
Aquatic Scourge BodyAlternate
Aquatic Scourge Body (Alternate).png
Statistics
TypeBossBurrowing Enemy
EnvironmentSulphurous Sea
AI TypeAquatic Scourge AI
Damage0 (Passive)
55 / 88 / 112 / 120 (Contact)
56 / 92 / 116 / 128 (Sand Blast)
Max Life73,000 / 116,800 / 136,000
Defense25
DR5%
KB Resist100%
Inflicts debuffBleedingBleeding
100% chance
Debuff duration3 seconds
Debuff tooltipCannot regenerate life
Inflicts debuffVenomVenom
100% chance
Debuff duration3 seconds
Debuff tooltipLosing life
Aquatic Scourge Tail
Aquatic Scourge Tail.png
Statistics
TypeBossBurrowing Enemy
EnvironmentSulphurous Sea
AI TypeAquatic Scourge AI
Damage0 (Passive)
45 / 72 / 96 / 104 (Contact)
Max Life73,000 / 116,800 / 136,000
Defense45
DR15%
KB Resist100%
Inflicts debuffBleedingBleeding
100% chance
Debuff duration2 seconds
Debuff tooltipCannot regenerate life
Inflicts debuffVenomVenom
100% chance
Debuff duration2 seconds
Debuff tooltipLosing life

Behavior[]

The Aquatic Scourge is an aerial worm-like enemy, with 31 / 36 / 41 / 51 segments in total. Once spawned, the Aquatic Scourge will be passive, slowly following the player. It will become hostile and rapidly accelerate upon being hit by the player and dropping to 99% health or lower.

Once hostile, the Aquatic Scourge will follow the player with curve-like movements with a constant speed. As it travels, it will release many different projectiles along its path.

The Aquatic Scourge enrages outside the Ocean and Sulphurous Sea, greatly increasing its movement speed. The boss will only enrage once the player has left both biomes.

Attacks[]

  • Every 7 / 6 seconds, the Aquatic Scourge vomits out several projectiles from its mouth in a circular spread. These projectiles include:
    • 20 / 30 Sand BlastSand Blasts in an evenly-spaced ring which travel quickly in a straight line.
    • 7 / 14 Sand Poison CloudSand Poison Clouds in random directions and speeds that linger in the air for 30 seconds.
  • The Aquatic Scourge randomly releases Sand BlastSand Blasts and homing Sand ToothSand Teeth from its tooth-less and toothed body segments respectively.

In Expert Mode[]

  • Segments are increased from 31 to 36 and size increased by 10%.
  • Toothed body segments fire Sand Teeth more often.
  • Releases 7 more Sand Poison Clouds and 10 more Sand Blasts in the vomit attack.
  • Increased cloud spread, top speed, and acceleration as health lowers.
  • If gravity is reversed, such as when using a Gravitation Potion, the Aquatic Scourge will triple its base speed and vomit rate.

In Revengeance Mode[]

  • Segments are increased from 36 to 41 and size increased by 5%.
  • Moves faster and has a higher top speed.
  • Vomits more often and Sand Blasts resulting from the vomit travel faster.
  • Every 11 seconds, the Aquatic Scourge performs a circle around a certain point at its path for 2 seconds before charging the player.
    • While spinning, it fires 3 barrages of 3 / 5 sand blasts at the player.
    • It can not vomit while performing this attack.

In Death Mode[]

  • Segments are increased from 41 to 51 and size increased by 5%.
  • Acceleration and top speed increase depending on the player's distance from it and as its health decreases.
  • Sand Blasts and Teeth travel even faster.
  • Fires a wider spread of 5 sand blasts while spinning.

During the Boss Rush[]

  • Does not have a passive nor an enrage state.
  • Vomits every 5 seconds instead of 7 / 6.
  • Sand Poison Clouds travel 25% farther.

Aftermath[]

Resistances[]

  • All segments take reduced damage from non-minion piercing projectiles in Expert Mode. Projectile damage is divided by the number of times it pierces. Infinite piercing deals 50% damage.
  • All segments reduce damage from grenade-type projectiles by 80%. A list of affected projectiles is below.
Resisted grenades
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Notes[]

  • If the player uses a Magic Mirror or Recall Potion, the Aquatic Scourge will follow the player to their spawn point. This can also happen occasionally when the player dies.
  • While this boss can spawn in Pre-Hardmode, it is not recommended to fight it until the player has acquired decent Hardmode gear since it is very fast and has many attacks that an early game player cannot handle.
  • Aquatic Scourge, like Desert Scourge and The Leviathan, can drop fishing items rewarded by the Angler for completing his quests.
  • It drops materials for the Victide Bar, even though they are rendered quite obsolete at this point of the game.
  • All of the Aquatic Scourge's loot will spawn at the nearest segment with the exception of the Sulphurous Sand and Hearts, which will always spawn at the head.
  • All minions cannot do damage to the Aquatic Scourge while it is above 99% health.

Tips[]

For more elaborate strategies on defeating the Aquatic Scourge, including weapon and arena recommendations, see Guide:Aquatic Scourge strategies.
  • This fight is very difficult to tank. Avoid the tooth projectiles and gas clouds at all costs and use weapons with ranged options if possible.
  • Avoid the head as much as possible, especially on Revengeance or Death Mode, as its high contact damage can kill the player extremely quickly.
  • Spawning the Aquatic Scourge when trying to fish in the Sulphurous Sea is a good idea, as it strongly reduces enemy spawn rate while it is alive. Due to the time-consuming nature of fishing or waiting for the Scourge to spawn, it is highly likely that it will spawn while the player is fishing.

Trivia[]

  • The theme heard during the Aquatic Scourge battle is Outcast of the Sulphurous Seas, which was composed by the artist DM DOKURO.
    • The theme is a remix of the Desert Scourge’s theme.
    • If the Calamity Music add-on mod is disabled, Boss 2 will play instead.
  • Because it is a more powerful version of the Desert Scourge, many of their drops are shared. The Aquatic Scourge's weapons are upgraded versions of the Desert Scourge's weapons, as well.
    • This boss and the Desert Scourge can both drop the Aero Stone and several fishing drops, making them the only two bosses to share a drop outside of crafting materials, potions, or fishing items.
  • The Aquatic Scourge's design was initially a redesign of the Desert Scourge made by Frous, a spriter for the mod.
  • With a passive state longer than that of Crabulon's (the Scourge will always remain passive unless attacked, Crabulon will wait a while before attacking) and it slowly following the player, then rapidly accelerating when attacked, it could be postulated that the Aquatic Scourge has some degree of intelligence or sapience and is simply curious about the player.
  • Similarly to Leviathan and Anahita, the Aquatic Scourge can be accidentally summoned in Pre-Hardmode, although the latter will not be immediately hostile.
  • The Aquatic Scourge was previously an alternative for The Twins because of its previous ability to drop Souls of Sight.
  • If the Boss Checklist Mod is installed, its unique despawn message will be "The Aquatic Scourge swam back into the open ocean."

Lore[]

The long-lost relative of The Desert Scourge mutated by the toxic sulphuric waters above the Abyss. Due to its adaptations to thrive in the sulphuric ocean and ample food supply of catfish and flounder it is far less aggressive than its relative. Those that venture to the sulphuric ocean should exercise caution however, as this sea beast is still a carnivorous predator and will immediately attack if provoked.

See also[]

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