Aquatic Scourge

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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 / 160,000
KB Resist100%
Immune toAll debuffs except:
Shellfish ClapsEnraged
Drops
Coins15 Gold Coin
Aquatic Scourge map.png
Map Icon

Aquatic Scourge (Lore).png "A horror born of pollution and insatiable hunger..." Aquatic Scourge (Lore).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.

Defeating it grants Souls of Sight, meaning it is an alternative for The Twins.

Spawn[edit | edit source]

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

Segments[edit | edit source]

Aquatic Scourge Head
Aquatic Scourge Head.png
Statistics
TypeBossBurrowing Enemy
EnvironmentSulphurous Sea
AI TypeAquatic Scourge AI
Damage0 (Passive)
80 / 160 / 200 / 230 (Contact)
60 / 100 / 125 / 143 (Tooth)
56 / 92 / 115 / 132 (Sand Blast)
66 / 112 / 140 / 161 (Sulphur Cloud)
Max Life73,000 / 116,800 / 136,000 / 160,000
Defense (DR)20 (10% DR)
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
Inflicts debuffMarkedMarked
100% chance
Debuff duration3 seconds
Debuff tooltipDamage reduction reduced
Aquatic Scourge Body
Aquatic Scourge Body.png
Statistics
TypeBossBurrowing Enemy
EnvironmentSulphurous Sea
AI TypeAquatic Scourge AI
Damage0 (Passive)
65 / 110 / 137 / 157 (Contact)
60 / 100 / 125 / 143 (Tooth)
Max Life73,000 / 116,800 / 136,000 / 160,000
Defense (DR)35 (5% DR)
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 / 93 / 116 / 133 (Contact)
56 / 92 / 115 / 132 (Sand Blast)
Max Life73,000 / 116,800 / 136,000 / 160,000
Defense (DR)25 (5% DR)
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 / 76 / 95 / 109 (Contact)
Max Life73,000 / 116,800 / 136,000 / 160,000
Defense (DR)45 (15% DR)
KB Resist100%
Inflicts debuffBleedingBleeding
100% chance
Debuff duration2 seconds
Debuff tooltipCannot regenerate life
Inflicts debuffVenomVenom
100% chance
Debuff duration2 seconds
Debuff tooltipLosing life

Behavior[edit | edit source]

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.

Once hostile, the Aquatic Scourge will circle the player in the ground or in the air, firing projectiles and summoning minions. It will also attempt to charge into the player to deal contact damage.

If gravity is reversed, such as when using a Gravitation Potion, the Aquatic Scourge gains a significant speed boost and vomits projectiles more often. Going too high (into the Space layer) or leaving the Sulphurous Sea will cause the Aquatic Scourge to flee downward and despawn.

Attacks[edit | edit source]

  • The Aquatic Scourge periodically "vomits" several projectiles from its mouth in a circular spread. These projectiles include:
    • Sand blasts which travel quickly in a straight line.
    • Tooth-like projectiles which home in on the player.
    • Sulphur gas clouds that linger in the air for a long time.
  • The Aquatic Scourge randomly releases sand blasts and homing teeth from its body segments.
  • The Aquatic Scourge occasionally summons Aquatic Seekers, Aquatic Parasites, and Aquatic Urchins.

In Expert Mode[edit | edit source]

  • Body segments are bigger.
  • Body segments fire sand blasts and teeth more often.

In Revengeance Mode[edit | edit source]

  • The Aquatic Scourge moves faster.
  • Vomited sand blasts and teeth travel at a greater velocity.
  • Head inflicts the Marked debuff on contact.

During the Boss Rush[edit | edit source]

  • Does not have a passive state; aggressive upon spawning.
  • Will not flee when outside of the Sulphurous Sea.
  • The Aquatic Scourge moves much faster and vomits projectiles more often.
  • Sand blasts and teeth travel at a greater velocity, even more so when vomited.
  • Body segments fire sand blasts and teeth more often.
    • Only occurs in Normal Mode. In Expert, the rate is already boosted.
  • Sulphur gas clouds travel roughly twice as far before stopping.

Summons[edit | edit source]

Image Name Condition
Aquatic Parasite Aquatic Parasite During boss fight
Aquatic Seeker Aquatic Seeker During boss fight
Aquatic Urchin Aquatic Urchin During boss fight

Aftermath[edit | edit source]

Fishing Drops[edit | edit source]

Image Item Quantity Rate
Sonar Potion Sonar Potion 2-3 25% / 33.33%
Crate Potion Crate Potion 2-3 25% / 33.33%
Fishing Potion Fishing Potion 2-3 25% / 33.33%
Angler Hat Angler Hat 1 25% / 33.33%
Angler Vest Angler Vest 1 25% / 33.33%
Angler Pants Angler Pants 1 25% / 33.33%
Fisherman's Pocket Guide Fisherman's Pocket Guide 1 11.11% / 12.5%
Sextant Sextant 1 11.11% / 12.5%
Angler Earring Angler Earring 1 11.11% / 12.5%
Weather Radio Weather Radio 1 11.11% / 12.5%
High Test Fishing Line High Test Fishing Line 1 8.33% / 10%
Tackle Box Tackle Box 1 8.33% / 10%
Angler Tackle Bag Angler Tackle Bag 1 8.33% / 10%
Golden Bug Net Golden Bug Net[1] 1 6.67% / 8.33%
  1. In Normal Mode, only after Skeletron has been defeated. Always available in Expert Mode.

Notes[edit | edit source]

  • 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 Aquatic Scourge segments take reduced damage from piercing projectiles. Piercing projectile damage is halved.
  • 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.

Tips[edit | edit source]

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

General[edit | edit source]

  • 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.

Weapons & Equipment[edit | edit source]

  • Absolute Zero and the Darklight Greatsword are good weapons to use against the Aquatic Scourge due to its large hitbox.
  • The Daedalus Stormbow combined with Holy Arrows can easily destroy the Aquatic Scourge.
    • This combo was nerfed in the Calamity Mod, but still does excellent damage.
    • Alternatively, Jester's Arrows can be used due to their infinite piercing ability.
  • Poseidon is a great weapon due to its homing and piercing properties.
  • The Ancient Ice Chunk is a very good weapon in general, and can deal good damage to the Aquatic Scourge.
  • The Icebreaker and Spear of Paleolith are great early Hardmode weapons that deal excellent damage.
    • The Kelvin Catalyst is a great Melee and Rogue weapon for segmented enemies like the Aquatic Scourge; however it has a fairly short range, making it difficult to use on this boss.
  • The boss takes a while to turn, therefore using an item like the Counter Scarf is great for dodging the boss and its projectiles.
  • The Honey Dew can be a good accessory to deal with Venom.
    • It's also possible to equip the Honey Dew when inflicted with Venom to cure it, and then switch it back out for a more useful accessory.

Miscellaneous[edit | edit source]

  • 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[edit | edit source]

  • 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.
  • Like several other bosses in the mod, the Aquatic Scourge lacks a mask.
  • 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 the Siren and Leviathan, the Aquatic Scourge can be accidentally summoned in Pre-Hardmode, although the latter will not be immediately hostile.
  • The Aquatic Scourge is an Alternative Mechanical boss because of its ability to drop Souls of Sight. The Brimstone Elemental and Cryogen drop Souls of Fright and Souls of Might respectively, meaning the Drax or Pickaxe Axe can be crafted after defeating only one Mechanical Boss, allowing the player to utilize Chlorophyte and Unholy Cores even before beating the other Mechanical Bosses.

Lore[edit | edit source]

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[edit | edit source]