Blade of Selves is a rare Artifact — Equipment card from Commander Anthology Volume II (CM2), collector number 174. Current market price: $3.22, 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}