Blade of Selves is a rare Artifact — Equipment card from Commander 2015 (C15), collector number 51. Current market price: $7.95, TCGplayer market prices via Scryfall.
Equipped creature has myriad. (Whenever it attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.) Equip {4}