How can you create a combo with Karn, the Great Creator, Voltaic Construct, Empowered Autogenerator?
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[START OF COMBO]This combo can be formed with Karn, the Great Creator, Voltaic Construct, Empowered Autogenerator

Color identity: C
Mana cost: 
Steps:
  1. Activate Karn's first loyalty ability, causing Empowered Autogenerator to become an artifact creature until end of turn.
  2. Activate Empowered Autogenerator by putting a charge counter and tapping it, adding mana of any color equal to charge counters on Empowered Autogenerator.
  3. Activate Voltaic Construct by paying {2}, untapping Empowered Autogenerator.
  4. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite colored mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Empowered Autogenerator does not have summoning sickness.
  - Empowered Autogenerator has at least two charge counters on it.
[END OF COMBO PREREQUISITES]
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