Drowner (5e Creature)
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Medium undead, chaotic evil
Pack Tactics. The Drowner has advantage on attack rolls against a creature if at least one of the Drowner's allies is within 5 feet of the creature and the ally isn't incapacitated.
Dodge. When the Drowner is attacked and hit more than once per round, it may use its reaction to use the Dodge action (up to twice per Long Rest).
Claws. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: (1d6 + 2) Slashing damage.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: (1d4 + 2) Piercing damage.
Drowners are predominantly pack creatures, usually in groups of three or greater, sometimes as many as ten. They are quite territorial, calling riverbeds, coastlines, swamps, and lakes home.