Gargoyle Flock is a rare Creature — Tyranid Gargoyle card from Warhammer 40,000 Commander (40K), collector number 123. Current market price: $0.34, TCGplayer market prices via Scryfall.
Flying Skyswarm — At the beginning of your end step, if a creature entered the battlefield under your control this turn, create a 1/1 blue Tyranid Gargoyle creature token with flying.