Dragon's Hoard (M19) from Core Set 2019, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Adam Paquette
• Card Text:
  Whenever a Dragon enters the battlefield under your control, put a gold counter on Dragon's Hoard.
  T, Remove a gold counter from Dragon's Hoard: Draw a card.
  T: Add one mana of any color.