Gameplay - The Wild Magic

A nat 20 automatically stabilizes you and heals you for one hit point. Each creature of your choice that you can see within 30 feet of you must succeed on a constitution saving throw or take 1D12 necrotic damage. You also gain temporary hit points equal to 1D12 plus your barbarian level. For the meta from a game at a gaming perspective, the Wild Magic portion of your rage is called "the water beast"