Dark Depths (2XM) from Double Masters, available at 401 Games Canada.

• Rarity: Mythic Rare
• Finish: Normal
• Artist: Mathias Kollros
• Card Text:
  Dark Depths enters the battlefield with ten ice counters on it.
  3: Remove an ice counter from Dark Depths.
  When Dark Depths has no ice counters on it, sacrifice it. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.