2, {T}: Put one counter on Blue Mana Battery. {T}: Add {U} to your mana pool. Remove as many counters as you wish. For each counter removed add {U} to your mana pool. This ability is played as an interrupt.

• Number: 34
• Rarity: U
• Type: Artifact
• Mana cost: 4
• Color: Artifact
• Artist: Amy Weber