Monoxa, Midway Manager is a uncommon Legendary Creature — Vampire Employee card from Unfinity (UNF), collector number 173. Current market price: $0.19 (foil $0.28), TCGplayer market prices via Scryfall.
Whenever you roll a 3 or higher, Monoxa gains first strike until end of turn. If the roll was 4 or higher, it gains menace until end of turn. If the roll was 5 or higher, it gains lifelink until end of turn. {6}: Roll a six-sided die.