Boros Keyrune
Price
Artifact
Boros Keyrune
Mana
{3}
Oracle text
{T}: Add {R} or {W}. {R}{W}: This artifact becomes a 1/1 red and white Soldier artifact creature with double strike until end of turn. (It deals both first-strike and regular combat damage.)
CommanderModernPioneerStandardLegacyVintagePauper
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0,07 €GTC · Gatecrash #227Cheapest tournament-legal
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Official rulings (2) · Scryfall
2013-04-15
Until the ability that turns the Keyrune into a creature resolves, the Keyrune is colorless.
2013-04-15
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.