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Advent of Ascension Wiki
Health 1800 (♥×900)
Damage Easy: 13.5 (♥×6.75)
Normal: 25 (♥×12.5)
Hard: 37.5 (♥×18.75)
Environment L'Borean
Hostility Aggressive
XP Xp Orb.png 190
Version added 1.0

Corallus (also known as the Coral Monster) is a L'Borean boss in Advent of Ascension. She is summoned by throwing an Amphibiyte Lung in water.


Corallus will pursue any player nearby; if the player is hit on land they are inflicted with Slowness IV for 2.5 seconds and a strong Weakness debuff for 5 seconds. If the player is hit while in the water they are instead knocked downwards below the surface of the water.

Every 16 seconds, Corallus will leap upwards into the air, letting out a roar, and if she lands in water then she will fall below the surface of the water before re-emerging. During this time she will summon 3-4 Homing Projectiles which will pursue the player and explode either upon reaching the player or when they are hit.

Every 10 seconds, Corallus will also sometimes change colour into a darker shade of blue, inflicting herself with Strength IV for 4 seconds.

Strong Form
Corallus' Projectile


Unique drops
Item Quantity Chance Notes
L'Borean Table - 100.0%
The above pool is rolled 1 time
Nothing - 14.4% Chance is decreased with each level of luck and/or looting.
Water Rune.pngWater Rune 6-20 11.5%
Storm Rune.pngStorm Rune 6-20 11.5%
Raw Salmon.pngRaw Salmon 6-12 10.3%
Silver Coin.pngSilver Coin 1-5 10.1%
Magic Repair Dust.pngMagic Repair Dust 1-3 8.6%
Sharp Claw.pngSharp Claw 1 8.6%
32pxRaw Violet Skipper 1-3 8.0%
32pxRaw Sapphire Strider 1-3 6.9%
32pxRaw Dark Hatchetfish 1-3 5.7%
Gold Coin.pngGold Coin 1-2 4.3%
The above pool is rolled 1-2 times, with an additional roll per point of Luck
Nothing - 66.7% Chance is decreased with each level of luck and/or looting.
Coral Staff.pngCoral Staff 1 16.7%
Reef Staff.pngReef Staff 1 10.0%
Achelos Diving Helmet.pngAchelos Diving Helmet 1 6.7%
The above pool is rolled 1 time
32pxCorallus Trophy 1 100.0%
The above pool is rolled 1 time

Related Advancements[]

Icon Name Description Obtaining Parent ID Hidden
Advancement challenge bg.pngTrophy.png Reef Bleach Defeat Corallus, the Coral Monster See description Breathless aoa3:lborean/reef_bleach No

Advancement bg.pngGold Trophy.png Hardened Coral Craft a Gold Corallus Statue See description Reef Bleach aoa3:lborean/hardened_coral No

Advancement bg.pngOrnate Trophy.png Reef Extinction Obtain an Ornate Corallus Statue See description Hardened Coral aoa3:lborean/reef_extinction Yes


  • Corallus, along with Baroness, are the only confirmed female bosses in Advent of Ascension.[1]