Maybe a worm monster that is just deformed, and may have a large set of mandibles that resemble a stab beetle's pincers.
Killing scream, a shriek that stuns and damages hunters.
Death roll, the monster rolls at anything in front of it.
Acid sacs, the sacs in the creature burst open, oozing out blood like acid.
Dirt arena, the monster makes a arena around its surroundings, mocking the hunters ain't he?
I can't think of a name, but one day I will.