Yuzuhira, Empire Blade

First Strike, Echoes Myriad (Token copies are not legendaries and have 1 toughness)
Commander Ninjustu Fixed {1}{b}{w}
When this creature deals combat damage to an opponent you may pay {x} if you do exile
an aura our equipment card from your hand with
a converted mana cost of {x} or less with an "echo" counter on it
When this creature enter the battlefield choose any number of exiled card with an "echo" counter
then create a copy of the chosen cards attached to this creature