Altar Stone Golem

Used the base Earth elemental by scholssbauer (https://www.thingiverse.com/thing:3294553) and added the Altar for tabletop games by OblivionStar (https://www.thingiverse.com/thing:3606633) in its back.

I used this creature as a "surprise trap". When the adventurers tried to get something from the altar, I started to rise itself and stood up as a massive rock golem. Surely the didn't expect it.