Ancient Silver Dragon (CLB) from Commander Legends: Battle for Baldur's Gate, available at 401 Games Canada.

• Rarity: Mythic Rare
• Finish: Normal
• Artist: Raoul Vitale
• Card Text:
  Flying
  Whenever Ancient Silver Dragon deals combat damage to a player, roll a d20. Draw cards equal to the result. You have no maximum hand size for the rest of the game.