Holding priority, cast Double Major by paying ({G} magic symbol) ({U} magic symbol) , targeting Biovisionary.
Cast Increasing Vengeance from your graveyard for its flashback cost by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) , copying Double Major twice, with both copies targeting Biovisionary.
Resolve all Double Majors, creating three copies of the Biovisionary spells.
Resolve all Biovisionary spells, causing you to have a nontoken Biovisionary and three token Biovisionaries.
At the beginning of your end step, each Biovisionary triggers.
Resolve the first trigger, causing you to win the game.