Summon: G.F. Cerberus + Biovisionary + Ember Island Production
Summon: G.F. Cerberus
Biovisionary
Ember Island Production
Win the game
How it works
At the beginning of your precombat main phase. Summon: G.F. Cerberus triggers, putting a lore counter on it and triggering its third chapter ability, copying the next instant or sorcery spell you cast twice.
Cast Ember Island Production by paying its mana cost, targeting Biovisionary.
Summon: G.F. Cerberus triggers, copying Ember Island Production twice, with the copies targeting Biovisionary.
Resolve all Ember Island Productions, copying Biovisionary three times.
At the beginning of your end step, each Biovisionary triggers. Resolve the first trigger, causing you to win the game.