Moccos

Moccos is a large moving cristella event, not a normal biome mob. It travels in a straight line high above the ground and changes the terrain as it passes.

Every 5 seconds it floods a small sphere around its center point. It does not chase. It moves through the world and leaves sudden water around itself.

It has no ordinary spawn table, so most players only meet it through a moccos capsule or deliberate testing. Because it counts as cristella, cristella's bane is the right tool if you want to kill it. The drops are ice cubes or an ice pick.