Advent of Ascension Wiki

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Advent of Ascension Wiki
Health 78 (♥×39)
Size Width: 1.0 blocks
Height: 1.75 blocks
Damage Easy: 4.75 (♥×2.375)
Normal: 7.5 (♥×3.75)
Hard: 11.25 (♥×5.625)
Environment Precasia
Hostility Hostile
XP Xp Orb.png 14
Knockback Resistance 15%
ID aoa3:iosaur
Version added 1.0

The Iosaur is an aggressive melee mob that appears in Precasia.


Iosaurs spawn in Precasian Underground Dens.

They will despawn if the player gets too far away from them, or if the difficulty is set to Peaceful.


Iosaurs are melee mobs that will follow targets both on land and in water. They will initially attempt to avoid getting into the water where possible, but will go in if they find no other path to their target.

They are aggressive, and will attack nearby players within 16 blocks without provocation. If attacked by another entity, they will retaliate and continue targeting that entity.

They apply Poison III to the player on hit, which lasts for 3 seconds.

Staying outside of their targeting range will prevent them from attacking or targeting entities.

Hunter Mob[]

Iosaurs are Hunter creatures that can only be damaged if the player is at level 29 or higher. When killed, they will grant 24.2 Hunter xp.


Entity loot
Item Quantity Chance
Precasia Table 1 100.0%
The above pool is rolled 1 time
Nothing - 36.4%
Legbone Sword.pngLegbone Sword 1 2.5%
Leather.pngLeather 1-4 10.9%
Footbone Fragment.pngFootbone Fragment 1 9.8%
Legbone Fragment.pngLegbone Fragment 1 9.8%
Chestbone Fragment.pngChestbone Fragment 1 9.5%
Skullbone Fragment.pngSkullbone Fragment 1 9.1%
Bone.pngBone 1-3 12.0%
The above pool is rolled 1 time


  • It slightly resembles the Moschops, a prehistoric animal which wasn't an actual dinosaur.
  • It strongly resembles the Spinoledon.