Pigron (5e Creature)
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Large dragon, any chaotic alignment
Amphibious. The pigron can breathe air and water.
Charge. If the pigron moves at least 20 feet straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 9 (2d8) slashing damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be knocked prone.
Incorporeal Movement. The pigron can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.
Gore. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 15 (3d6 + 5) slashing damage.
Tail. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 23 (4d8 + 5) bludgeoning damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be pushed up to 10 feet away from the pigron and knocked prone.
This elusive dragon-pig hybrid has excellent stealth capabilities despite its rotund figure. It is uncertain how they came to exist. Pigrons are found in cold climates, and use their tusks and natural ability to pass through solid matter to hunt.