How can you create a combo with Gonti's Aether Heart, Mishra, Eminent One, Urza, Prince of Kroog?
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[START OF COMBO]This combo can be formed with Gonti's Aether Heart, Mishra, Eminent One, Urza, Prince of Kroog

Color identity: WUBR
Mana cost: {6} each turn
Steps:
  1. At the beginning of combat, Mishra triggers, creating a 4/4 artifact creature token copy of Gonti's Aether Heart named Mishra's Warform.
  2. Mishra's Warform enters the battlefield, triggering itself and Gonti's Aether Heart, causing you to get four energy counters.
  3. Activate Urza by paying {6}, creating a 3/3 Soldier artifact creature token copy of Gonti's Aether Heart.
  4. Put the token copy of Gonti's Aether Heart into the graveyard due to the legend rule.
  5. The Gonti's Aether Heart token entering the battlefield triggers Mishra's Warform and Gonti's Aether Heart and itself, causing you to get six energy counters.
  6. Activate Mishra's Warform by paying eight energy counters and exiling it, taking an extra turn after this one.
  7. Repeat each turn.[END OF COMBO STEPS]

Result:
  - Infinite turns[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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