Parapet Thrasher is a rare Creature — Dragon card from Foundations Commander (FDC), collector number 170. Current market price: $0.61, TCGplayer market prices via Scryfall.
Flying Whenever one or more Dragons you control deal combat damage to an opponent, choose one that hasn't been chosen this turn — • Destroy target artifact that opponent controls. • This creature deals 4 damage to each other opponent. • Exile the top card of your library. You may play it this turn.