How can you create a combo with Ulalek, Fused Atrocity, Annie Joins Up, Spawn-Gang Commander?
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[START OF COMBO]This combo can be formed with Ulalek, Fused Atrocity, Annie Joins Up, Spawn-Gang Commander

Color identity: WUBRG
Mana cost: {3}{C}{C}{R}{R}
Steps:
  1. Cast Spawn-Gang Commander by paying {3}{R}{R}.
  2. Ulalek triggers twice, and Spawn-Gang Commander triggers once.
  3. Resolve one of Ulalek's triggers, causing you to pay {C}{C} to copy the Spawn-Gang Commander spell, Ulalek's trigger and Spawn-Gang Commander's trigger.
  4. Resolve the copy of Spawn-Gang Commander's trigger, creating three 0/1 Eldrazi Spawn creature tokens.
  5. Holding priority, activate two Eldrazi Spawns by sacrificing them, adding {C}{C}.
  6. Resolve the Ulalek trigger from step 3, causing you to pay {C}{C} to copy the Spawn-Gang Commander spell, Ulalek's trigger and Spawn-Gang Commander's trigger.
  7. Repeat from step 4.[END OF COMBO STEPS]

Result:
  - Infinite leaves the battlefield
  - Infinite enters the battlefield
  - Infinite sacrifice triggers
  - Infinite death triggers
  - Infinite colorless mana
  - Infinite damage
  - Infinite creature tokens
  - Infinite copies of abilities you control on the stack[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Ulalek, Fused Atrocity must be on the battlefield
  - Annie Joins Up must be on the battlefield
  - Spawn-Gang Commander must be in your hand
[END OF COMBO PREREQUISITES]
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