Cadaver Caterpillar (Wild Magic Mutant)

Spider Climb. The spider can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Standing Leap. Can leap up to movement speed, even when standing still.

Death Hungry. If the target took any damage, the Caterpillar gets +2 to hit on its attacks. 

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 7 (1d6 + 3) piercing damage and 4 (1d6) necrotic damage. If the target is a dead Non Wild Magic Mutant  the caterpillar morphs into a Cadaver Moth at full health.

Web (Recharge 5–6). Ranged Weapon Attack: +4 to hit, range 30/60 ft., one creature. Hit: The target is restrained by webbing. As an action, the restrained target can make a DC 13 Strength check, bursting the webbing on a success. The webbing can also be attacked and destroyed (AC 10; hp 5; vulnerability to fire damage; immunity to bludgeoning, poison, and psychic damage).

Corpse hunger. As a reaction, if a Non Wild Magic Mutants creatures dies or is knocked unconscious within 30 feet of the Cadaver Caterpillar, it can move up to its movement speed towards it.