Shadow Alley Denizen is a common Creature — Vampire Rogue card from Ravnica Remastered (RVR), collector number 92. Current market price: $0.24 (foil $0.34), TCGplayer market prices via Scryfall.
Whenever another black creature you control enters, target creature gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)