Moonglove Changeling is a common Creature — Shapeshifter card from The List (PLST), collector number MOR-67. Current market price: $0.15, TCGplayer market prices via Scryfall.
Changeling (This card is every creature type.) {B}: This creature gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy that creature.)