Agent of Treachery [Core Set 2020 Prerelease Promos] Mutant Upon such armor

Upon such armor

Set: Commander 2014 Type: Artifact Creature — Phyrexian Wurm Rarity: Mythic Cost: {6} Deathtouch

They poured from the Skirk Ridge like lava

Set: Beta Edition Type: Sorcery Rarity: Common Cost: {X}{1}{B} Spend only black mana on X

Agent of Treachery [Core Set 2020 Prerelease Promos] Mutant Upon such armorSet: Core Set 2020 Prerelease Promos Type: Creature Human Rogue Rarity: Rare Cost: {5}{U}{U} When Agent of Treachery enters the battlefield, gain control of target permanent. At the beginning of your end step, if you control three or more permanents you don't own, draw three cards. "The more secrets you have, the more easily you become my pawn."