Cast Sakashima's Will by paying {3}{U}, causing each creature you control to become a copy of Biovisionary until end of turn.
At the beginning of your end step, each Biovisionary you control triggers.
Resolve the first trigger, causing you to win the game.

Win the game

Biovisionary

Sakashima's Will

Cast Sakashima's Will by paying {3}{U}, causing you to gain control of a creature an opponent controls, then causing all creatures you control to become a copy of Mirror-Mad Phantasm until end of turn.
Activate the creature your opponent owns by paying {1}{U}, causing its owner to shuffle the creature into their library, and then mill their entire library.

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