Cast Irenicus's Vile Duplication by paying ({3} magic symbol) ({U} magic symbol) , creating a nonlegendary token copy of Godo.
At the beginning of your combat phase, Brudiclad triggers, creating a 2/1 Phyrexian Myr artifact creature token, then causing all creature tokens you control to become copies of the Godo token.
Declare any Godo token as an attacker.
The Godo token triggers, untapping itself and all Samurai you control, and giving you an additional combat phase after this one.