Dimetrodon (5e Creature)
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Large beast, unaligned
Hold Breath. When underwater, the dimetrodon can hold its breath for 15 minutes.
Multiattack. The dimetrodon makes three bite attacks. It may substitute two of the bite attacks for a tail attack, but cannot make the bite and tail against the same target.
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 1d8 + 4 (9) piercing damage.
Often confused for a dinosaur, dimetrodon is actually closer to you and I than any dinosaur that ever lived. This creature blurs the line between mammal and reptile, as it shares characteristics of both: dimetrodon walks on lizard-like feet and has crocodilian scales on its belly, but every other part of its body has bare skin and it possesses whiskers showing its relation to mammals. On its back are long spines projecting from its spinal chord covered in a flap of skin used for display and to control its temperature. Dimetrodon tends to live in warm swamps, where it can prey on the bountiful fish.