Ahuizotl

Ahuizotl is the public-facing name for the shark vermin. It looks like a large black furry sphere with a long extension reaching out of it that ends in a grabbing hand. It is a water predator first and one of the fastest creatures in the catalog once it has room to move.

The fur ball spins on its axis as it travels, and the hand leads every strike. The raw hit is only 3 damage, but speed is the problem: 50 health, 24 speed, and 32 knockback resistance mean it closes hard in water. Attacks only trigger while it is actually moving fast (horizontal speed at least 6), so stopping its momentum neutralises it. If the hand runs into a block, it smashes the block instead of turning around, so walls are not reliable cover.

Its drown behavior is inverted: it suffocates above water. On land it flounders, loses half its speed, and starts dying on its own, so dragging the fight onto dry ground or shallow edges is the standard counter.

Ahuizotl spawns in water and flood-prone biomes such as Julia, Flood, Water Cube, Gnoche, and, very rarely, Abyss, plus night spawns in Forest, Abble, Flesh, and Disturbed Forest. An ahuizotl capsule summons one directly.

Every kill drops arm extension, and half of kills also give 8 bone. Tiamana drop chance is 70%.