How can you create a combo with Ardoz, Cobbler of War, Mana Echoes, Gemstone Array?
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[START OF COMBO]This combo can be formed with Ardoz, Cobbler of War, Mana Echoes, Gemstone Array

Color identity: R
Mana cost: {3}{R}
Steps:
  1. Activate Ardoz by paying {3}{R}, creating a 1/1 Goblin creature token with haste.
  2. The Goblin enters the battlefield, triggering Ardoz and Mana Echoes.
  3. Resolve the Ardoz trigger, giving the Goblin +2/+0 until end of turn.
  4. Resolve the Mana Echoes trigger, adding {C} for each Goblin you control.
  5. Activate Gemstone Array's first ability by paying {2}, putting a charge counter on it.
  6. Activate Gemstone Array's second ability by removing a charge counter from it, adding {R}.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite charge counters on Gemstone Array
  - Infinite colored mana
  - Infinite colorless mana
  - Infinite creature tokens with haste
  - Infinite enters the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least four Goblins.
[END OF COMBO PREREQUISITES]
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