Dimir Keyrune | Magic: The Gathering
Formats Dimir Keyrune is Legal in
Official Oracle Text for Dimir Keyrune
: Dimir Keyrune becomes a 2/2 blue and black Horror artifact creature until end of turn and can't be blocked this turn.
Official Rulings for Dimir Keyrune
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.