Magmin

When the Magmin dies, it explodes in a burst of fire and magma. Each creature within feet of it must make a saving throw, taking damage on a failed save, or half as much damage on a successful one. Flammable objects that aren't being worn or carried in that area are ignited.

+4 to hit, range 5 ft. Hit: 7 (2d6) fire damage. If the target is a creature or a flammable object, it ignites. Until a creature takes an action to douse the fire, the target takes damage at the end of each of its turns.

As a bonus action, the Magmin can set itself ablaze or extinguish its flames. While ablaze, the magmin sheds bright in a 10-foot radius and dim for an additional 10 ft.