Graven Archfiend

{3}{B}{B}

Artifact Creature — Gargoyle Demon · ysncAlchemy: New Capenna · #7 · Rare

Artifact Creature — Gargoyle Demon
As an additional cost to cast this spell, you may sacrifice a non-Demon creature.
Flying
When Graven Archfiend enters the battlefield, if its additional cost was paid, conjure a card named Demonic Pact onto the battlefield.
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