Monkey- is a uncommon Creature — Monkey card from Unstable (UST), collector number 115. Current market price: $0.19 (foil $0.97), TCGplayer market prices via Scryfall.
Whenever a nontoken creature you control dies, Augment {2}{G} ({2}{G}, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)