Mishra, Tamer of Mak Fawa (Borderless Alternate Art) [The Brothers' War] Vampire Wizard Set: Phyrexia: All Will Be

Set: Phyrexia: All Will Be One Prerelease Promos Type: Legendary Creature — Phyrexian Horror Rarity: Mythic Cost: {2}{U}{U} Flying

but the act of creation is inviolate

Set: Modern Horizons 3 Commander Type: Legendary Creature — Eldrazi Rarity: Mythic Cost: {3} Whenever Azlask

but I believe a more mundane power source might suffice

Mishra, Tamer of Mak Fawa (Borderless Alternate Art) [The Brothers' War] Vampire Wizard Set: Phyrexia: All Will BeSet: The Brothers' War Type: Legendary Creature Human Artificer Rarity: Rare Cost: {3}{B}{R} Permanents you control have WardSacrifice a permanent. Each artifact card in your graveyard has unearth {1}{B}{R} ({1}{B}{R}: Return the card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.) With the Brotherhood of Gix whispering in his ear,