Grixis Grimblade (ARB) from Alara Reborn, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Trevor Claxton
• Card Text:
  As long as you control another multicolored permanent, Grixis Grimblade gets +1/+1 and has deathtouch. (Whenever it deals damage to a creature, destroy that creature.)