Holding priority, cast Double Major by paying ({G} magic symbol) ({U} magic symbol) , copying the Biovisionary spell.
Resolve both Biovisionaries.
At the beginning of your combat phase, Brudiclad triggers, creating a 2/1 Phyrexian Myr creature token, then choosing to have all tokens you control become copies of the Biovisionary token.
At the beginning of your end step, each Biovisionary triggers.
Resolve the first Biovisionary trigger, causing you to win the game.