Gatecrash

Aurelia, the Warleader | Legendary Creature | Angel | Flying, vigilance, haste Whenever Aurelia, the Warleader attacks for the first time each turn, untap all creatures you control. After this phase, there is an additional combat phase. | Slawomir Maniak

Aurelia's Fury | Instant | | Aurelia's Fury deals X damage divided as you choose among any number of targets. Tap each creature dealt damage this way. Players dealt damage this way can't cast noncreature spells this turn. | Tyler Jacobson