Tawnos, Urza's Apprentice + Mechanized Production + Myr Battlesphere

Tawnos, Urza's Apprentice

Mechanized Production

Myr Battlesphere

How it works

1. Cast Myr Battlesphere by paying 7.
2. Myr Battlesphere enters the battlefield, triggering its ability.
3. Holding priority, activate Tawnos by paying and tapping it, copying Myr Battlesphere's trigger.
4. Resolve both Myr Battlesphere triggers, creating eight 1/1 Myr artifact creature tokens.
5. At the beginning of your next upkeep, Mechanized Production triggers, creating a token copy of the artifact it is attached to and causing you to win the game.