Pentad Prism (5DN) from Fifth Dawn, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: David Martin
• Card Text:
  Sunburst (This comes into play with a charge counter on it for each color of mana used to pay its cost.)
  Remove a charge counter from Pentad Prism: Add one mana of any color to your mana pool.