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

• Rarity: Common
• Finish: Normal
• Artist: Andreas Rocha
• Card Text:
  T: Add C.
  1, T: Add one mana of any color.
  1, T, Tap an untapped Gate you control: Create a treasure token. (It's an artifact with "T, Sacrifice this artifact: Add one mana of any color.")