Blue Mana Battery
Artifact
Mana Cost:
{4}
CMC 4
Set:
Fourth Edition Foreign Black Border (4BB)
Rarity:
Rare
Standard
Commander
{2}, {T}: Put a charge counter on this artifact.
{T}, Remove any number of charge counters from this artifact: Add {U}, then add an additional {U} for each charge counter removed this way.
Deck Archetypes
Ramp
Equipment
Generates mana from charge counters; fits Ramp for mana production and Equipment for artifact-based mana generation.