How can you create a combo with Krenko, Mob Boss, Mana Echoes, Skirk Prospector, Thousand-Year Elixir?
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[START OF COMBO]This combo can be formed with Krenko, Mob Boss, Mana Echoes, Skirk Prospector, Thousand-Year Elixir

Color identity: R
Mana cost: 
Steps:
  1. Activate Krenko by tapping it, creating a 1/1 Goblin creature token for each Goblin you control.
  2. When the Goblins enter the battlefield, Mana Echoes triggers that many times.
  3. Resolve the first trigger, adding {C} for each Goblin on the battlefield.
  4. Repeat step 3 for each remaining trigger.
  5. Activate Skirk Prospector twice by sacrificing Krenko and a Goblin token, adding {R}{R}.
  6. Choose to return Krenko to the command zone from your graveyard.
  7. Cast Krenko from the command zone by paying {2}{R}{R} plus commander tax, if applicable.
  8. When Krenko enters the battlefield, Mana Echoes triggers, adding {C} for each Goblin and Warrior on the battlefield.
  9. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite commander casts
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite red mana
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - There is a number of additional Goblins on the battlefield equal to or greater than the number of times you've cast Krenko from the command zone this game minus two.
[END OF COMBO PREREQUISITES]
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