2, {T}: Put one charge counter on Black Mana Battery. TAP Add {B} to your mana pool and remove as many charge counters as you wish. For each charge counter removed from Black Mana Battery, add {B} to your mana pool. Play this ability as an interrupt.

• Number: 29
• Rarity: R
• Type: Artifact
• Mana cost: 4
• Color: Artifact
• Artist: Anson Maddocks