Astral Cornucopia (CM2) from Commander Anthology Volume II, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Aleksi Briclot
• Card Text:
  Astral Cornucopia enters the battlefield with X charge counters on it.
  T: Choose a color. Add one mana of that color for each charge counter on Astral Cornucopia.