Urza, Prince of Kroog | Myr Battlesphere | Mechanized Production

Cards

({7} magic symbol) , with an additional ({6} magic symbol) available your next turn available.

Cast
Myr Battlesphere by paying ({7} magic symbol) .
Myr Battlesphere enters the battlefield, creating four 1/1 Myr artifact creature tokens.
At the beginning of your next upkeep,
Mechanized Production triggers.
Holding priority, activate
Urza by paying ({6} magic symbol) , creating a token copy of
Myr Battlesphere that is a 1/1 Soldier in addition to its other types.
The
Myr Battlesphere token enters the battlefield, creating four 1/1 Myr artifact creature tokens.
Resolve the
Mechanized Production trigger, creating a token copy of the artifact it is attached to and causing you to win the game.