Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Flying At the beginning of your end step, each opponent discards a card. {1}{B}, Sacrifice an artifact: Target creature gets -2/-2 until end of turn.
![Herald of Anguish [Aether Revolt Prerelease Promos]](http://paradoxtcg.com/cdn/shop/files/49d26867-b77b-58fc-a1d2-3588972264f7.jpg?v=1738951154&width=1445)
