Coldsteel Heart [Commander 2015] Phyrexian Zombie {3}{B}{B}: Gain control of target

{3}{B}{B}: Gain control of target Vampire for as long as you control Olivia Voldaren

Set: Dragons of Tarkir Prerelease Promos Type: Instant Rarity: Rare Cost: {3}{U} Exile target creature an opponent controls

where the bones of all sinners wait for Ragnarok

Set: Guilds of Ravnica Prerelease Promos Type: Instant Rarity: Rare Cost: {U}{U} Surveil 2

When Wurmcoil Engine dies

Coldsteel Heart [Commander 2015] Phyrexian Zombie {3}{B}{B}: Gain control of targetSet: Commander 2015 Type: Snow Artifact Rarity: Uncommon Cost: {2} Coldsteel Heart enters the battlefield tapped. As Coldsteel Heart enters the battlefield, choose a color. {T}: Add one mana of the chosen color. The Phyrexian death machine awoke, its coldsteel heart imbuing it with sinister new power.