How can you create a combo with Necroduality, Rot Hulk, Carrion Feeder?
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[START OF COMBO]This combo can be formed with Necroduality, Rot Hulk, Carrion Feeder

Color identity: UB
Mana cost: {5}{B}{B}
Steps:
  1. Cast Rot Hulk by paying {5}{B}{B}.
  2. When Rot Hulk enters the battlefield, it and Necroduality trigger.
  3. Holding priority, activate Carrion Feeder by sacrificing Rot Hulk, putting a +1/+1 counter on Carrion Feeder.
  4. Resolve the Rot Hulk trigger, returning nothing to the battlefield.
  5. Resolve the Necroduality trigger, creating a token copy of Rot Hulk.
  6. When the Rot Hulk token enters the battlefield, it triggers, returning Rot Hulk from your graveyard to the battlefield.
  7. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Carrion Feeder
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Return all Zombies from your graveyard to the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Necroduality must be on the battlefield
  - Rot Hulk must be in your hand
  - Carrion Feeder must be on the battlefield
[END OF COMBO PREREQUISITES]
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