Shadow Lion

Pack Tactics. The lion has advantage on an attack roll against a creature if at least one of the lion’s allies is within 5 feet of the creature and the ally isn’t incapacitated.

Pounce. If the lion moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 13 Strength saving throw or be knocked prone. If the target is prone, the lion can make one bite attack against it as a bonus action.

Shadow Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 15 (2d8 + 5) piercing damage. +5 (1d8) necrotic damage.

Shadow Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 2) slashing damage. +4 (1d6) necrotic damage.

Shift. Reaction: Once per turn, the Shadow Lion turns into a shadowy mist and can move 25ft. in any direction and rematerialize.