Thistledown Duo (SHM) from Shadowmoor, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Zoltan Boros & Gabor Szikszai
• Card Text:
  Whenever you play a white spell, Thistledown Duo gets +1/+1 until end of turn.
  Whenever you play a blue spell, Thistledown Duo gains flying until end of turn.