Cheapest priced copy (Fifth Dawn): $1.79 at Card Kingdom, near mint, their price list as of .
Energy Chamber 
Artifact · Uncommon · Duel Decks: Elspeth vs. Tezzeret · #64
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.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $1.79 to $10.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Fifth Dawn | 117 | Uncommon | $1.79 | $10.99 |
| Duel Decks: Elspeth vs. Tezzeret | 64 | Uncommon | $2.79 | — |