
At the beginning of your upkeep, choose one —
• Put a +1/+1 counter on target artifact creature.
• Put a charge counter on target noncreature artifact.
Energy Chamber has 2 printings, first in Fifth Dawn (2004). EDHREC ranks it #8,823 among Commander cards. It appears most in Kilo, Apogee Mind decks (2,140 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.