Sarkhan, the Dragonspeaker (KTK) from Khans of Tarkir, available at 401 Games Canada.

• Rarity: Mythic Rare
• Finish: Normal
• Artist: Daarken
• Card Text:
  [+1]: Until end of turn, Sarkhan, the Dragonspeaker becomes a legendary 4/4 red Dragon creature with flying, indestructible, and haste. (He doesn't lose loyalty while he's not a planeswalker.)
  [-3]: Sarkhan, the Dragonspeaker deals 4 damage to target creature.
  [-6]: You get an emblem with "At the beginning of your draw step, draw two additional cards" and "At the beginning of your end step discard your hand."