Tome Entry
Banshee's Blade
Artifact — EquipmentMirrodin · uncommon
Equipped creature gets +1/+1 for each charge counter on this Equipment.
Whenever equipped creature deals combat damage, put a charge counter on this Equipment.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Legality
StandardFutureHistoricTimelessGladiatorPioneerModernLegacyPauperVintagePennyCommanderOathbreakerStandardbrawlBrawlAlchemyPaupercommanderDuelOldschoolPremodernPredhTlr
Market Prices
USD $0.27Foil $12.63EUR €0.13