Falkenrath Aristocrat is a mythic Creature — Vampire Noble card from Dark Ascension (DKA), collector number 138. Current market price: $0.39 (foil $7.24), TCGplayer market prices via Scryfall.
Flying, haste Sacrifice a creature: This creature gains indestructible until end of turn. If the sacrificed creature was a Human, put a +1/+1 counter on this creature.