Black Mana Battery is a uncommon Artifact card from Magic: The Gathering (Legends, LEG). Current market price: $5.70.
Uncommon
Legends (LEG)
{4}
Mana Value
4
Card Text
{2}, {T}: Put a charge counter on this artifact.
{T}, Remove any number of charge counters from this artifact: Add {B}, then add an additional {B} for each charge counter removed this way.
