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.
Digital-only printing
No paper market price
Graven Archfiend from Alchemy: New Capenna is available digitally in MTG Arena. This printing has no physical card, so TCGplayer and Cardmarket paper prices do not apply.
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