How can you create a combo with Automated Assembly Line, Gonti's Aether Heart, Era of Innovation, Krark-Clan Ironworks?
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[START OF COMBO]This combo can be formed with Automated Assembly Line, Gonti's Aether Heart, Era of Innovation, Krark-Clan Ironworks

Color identity: WU
Mana cost: 
Steps:
  1. Activate Automated Assembly Line by paying {E}{E}{E}, creating a 3/3 Robot artifact creature token.
  2. When the Robot enters the battlefield, Gonti's Aether Heart and Era of Innovation trigger.
  3. Holding priority, activate Krark-Clan Ironworks by sacrificing the Robot, adding {C}{C}.
  4. Resolve the Era of Innovation trigger, causing you to pay {1} to get {E}{E}.
  5. Resolve the Gonti's Aether Heart trigger, causing you to get {E}{E}.
  6. Repeat.
  7. Once you have infinite {E}, you may forego sacrificing the Robots.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite energy counters
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite tapped creature tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You have at least {E}{E}{E} available.
[END OF COMBO PREREQUISITES]
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