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://tothetablebgc.myshopify.com/cdn/shop/files/ad6f6990-369c-4cc2-8c74-bb9831e6cf99.png?v=1776521741&width=1445)
