Boros Keyrune

Condition: Near Mint
Color: Artifact
Card Text: T: Add R or W to your mana pool
RW: Boros Keyrune 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.)
Rarity: U
Cost: 3
Card Type: Artifact
Artist: Daniel Ljunggren
Name: Boros Keyrune
Finish: Regular
Card Number: 223/249
Set Name: Gatecrash