Homebrew
Brutal: You critically hit on a 19 or 20. Pack Tacktics: You have advantage on attack rolls if an ally is within 5 ft.
Bite: Melee Weapon Attack: +5 to hit, reach 5ft, one target. Hit 14 3d6+4 piercing damage. Swallow: You try to grapple a creature within 5ft. (Dooming 1) If the creature is still grappled it takes 12 5d4 piercing damage.
Devour: When you reduce an adjacent creature to 0 hit point, you can swallow it. At the start of each of your turns the creature gains one failed death saving throw. If you take damage, you must succeed on a Constitution saving throw with a DC of 5 + the damage taken, or regurgitate the creature.