Claw

Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage. The target must succeed on a DC 13 Constitution saving throw or take 7 (2d6) poison damage and become poisoned until the end of its next turn.

Vine Whip (Tree Form Only)

Melee Weapon Attack: +5 to hit, reach 20 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage, and if the target is a Large or smaller creature, it is grappled (escape DC 13). The skinner can grapple up to two creatures at one time.

Squeeze (Tree Form Only)

The tree skinner makes one vine whip attack against a creature it is grappling. If the attack hits, the target is also unable to breathe or cast spells with verbal components until this grapple ends.