Stone Golems (Coblems)

These stone monsters go by the name Coblems

These look like iron golems but made out of cobblestone, but there are differences, they don't have noses, they have the same healthpoints as the iron golem, but do five less damage than an iron golem

These creatures can be found in the deep dark, unlike iron golems instead of using their arms to fling you in the air, these golems have two attacks slam down with its large arms, and another attack when you are far away from it, it will crouch and pick up stone from the floor and throws the stone at the player until either the player gets out of it's sight or runs in to fight it, there also should be an advancement called "stone's discovery" when a coblem attacks you, and "Stone's Last" when you defeat it