Visions of Phyrexia - The Brothers' War - 156

Enchantment

Mana Cost: {2}{R}{R}

At the beginning of your upkeep, exile the top card of your library. You may play that card this turn.
At the beginning of your end step, if you didn't play a card from exile this turn, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")

Rare · The Brothers' War · #156 (BRO)

Illustrated by Dominik Mayer