Dimir Keyrune

Oracle Text

T: Add U or B.

UB: Dimir Keyrune becomes a 2/2 blue and black Horror artifact creature until end of turn and can't be blocked this turn.

Card Rulings

4/15/2013 Until the ability that turns the Keyrune into a creature resolves, the Keyrune is colorless.
4/15/2013 Activating the ability that turns the Keyrune into a creature while it’s already a creature will override any effects that set its power and/or toughness to another number, but effects that modify power and/or toughness without directly setting them will still apply.

Additional Information