How can you create a combo with Urza, Prince of Kroog, Myr Battlesphere, Mechanized Production?
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[START OF COMBO]This combo can be formed with Urza, Prince of Kroog, Myr Battlesphere, Mechanized Production

Color identity: WU
Mana cost: {7}, with an additional {6} available your next turn
Steps:
  1. Cast Myr Battlesphere by paying {7}.
  2. Myr Battlesphere enters the battlefield, creating four 1/1 Myr artifact creature tokens.
  3. At the beginning of your next upkeep, Mechanized Production triggers.
  4. Holding priority, activate Urza by paying {6}, creating a token copy of Myr Battlesphere that is a 1/1 Soldier in addition to its other types.
  5. The Myr Battlesphere token enters the battlefield, creating four 1/1 Myr artifact creature tokens.
  6. Resolve the Mechanized Production trigger, creating a token copy of the artifact it is attached to and causing you to win the game.[END OF COMBO STEPS]

Result:
  - Win the game at the beginning of your next upkeep[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Urza, Prince of Kroog must be on the battlefield
  - Myr Battlesphere must be in your hand
  - Mechanized Production must be on the battlefield
[END OF COMBO PREREQUISITES]
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