Orzhov Keyrune

Artifact

Oracle text:

{T} : Add {W} or {B} .
{W} {B} : Orzhov Keyrune becomes a 1/4 white and black Thrull artifact creature with lifelink until end of turn.

You only need to wield it once to appreciate the power of control.

Collection:

Gatecrash

Rarity:

Uncommon