Cave Leech

Cave Leeches would be a new mob that dwells in areas in caves that have water.

Cave Leeches can be seen swimming around, and when you exit from swimming in a cave lake, you might wanna check in third person as you might have some Cave Leeches stuck on you.

Cave Leeches suck on the player's blood, they deal a half a heart of damage every few seconds, and will get worse depending on the number of Leeches latched on.

They won't get to the player if the player was inside a boat and will get off of the player if the player jumps, sprints and jumps, burns, and will naturally fall off the player when the player is down to a half a heart as they don't want to kill you but just want your blood.

When bats are nearby, they will also help attack any Cave Leech they see suction-cupped onto the player, and will also eat Cave Leeches seen outside of their habitat as bats would be a natural predator to Cave Leeches.

When the player kills a Cave Leech, they drop XP and the Cave Leech itself. You can feed a Cave Leech to a bat and the bat will guide you to the nearest ore rather it's on the surface or a few blocks into the ground.