Illustrated by Mark Poole Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
Perhaps it's Buster Sword's iconic nature that is buoying its price for now
Nightmare Unmaking Five mana, finality via Exiling, and a modal-feature that lets you choose which creatures fall victim: that's a winning combination that makes Nightmare Unmaking worthy of far more play than it currently receives
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Use the cantrips to set up your early turns (and occasionally plan out a timely Miracle Temporal Mastery), Spreading Seas to slow them down, hopefully flash in Dictate of Kruphix on their end step, untap and hold up Cryptic Command or Gigadrowse, and then cast Time Warp on Turn 5 and never pass the turn back to them
3 Avacyn, Angel Of Hope Gives Everything You Have Indestructible Avacyn, Angel of Hope isn't an easy creature to get into play at eight mana, but it's worth every bit of that mana cost if you can get her into play