Scaleguard Sentinels (DTK) from Dragons of Tarkir, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Matt Stewart
• Card Text:
  As an addition cost to cast Scaleguard Sentinels, you may reveal a Dragon card from your hand.
  Scaleguard Sentinels enters the battlefield with a +1/+1 counter on it if you revealed a Dragon card or controlled a Dragon as you cast Scaleguard Sentinels.