Thoqqua (5e Creature)
From D&D Wiki
Medium beast, unaligned
Molten Body. A creature that touches the thoqqua or hits it with a melee attack while within 5 feet of it takes 7 (2d6) fire damage.
Slam. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) bludgeoning damage and 7 (2d6) fire damage. The target must succeed on a DC 13 Strength saving throw or be pushed 5 feet away from the thoqqua.
The thoqqua is a four to five foot long worm-like creature with a head shaped like that of a drill. It spends its days tunneling deep in the earth spinning its body and generating heat as it does so. Although not carnivorous or hostile in nature, the thoqqua will attack anything that threatens it or its eating grounds. This is probably why miners deep under the ground are commonly attacked by small groups of them.