Energy Chamber (DDF) from Duel Decks: Elspeth vs. Tezzeret, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Kev Walker
• Card Text:
  At the beginning of your upkeep, choose one — Put a +1/+1 counter on target artifact creature; or put a charge counter on target noncreature artifact.