Parapet Thrasher
From Tarkir: Dragonstorm Commander set
Parapet Thrasher
Creature — Dragon
4/3
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.