Ember Swallower (THS) from Theros, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Slawomir Maniak
• Card Text:
  5RR: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
  When Ember Swallower becomes monstrous, each player sacrifices three lands