How can you create a combo with Mortuary, Narcomoeba, Undercity Informer, Pawn of Ulamog?
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[START OF COMBO]This combo can be formed with Mortuary, Narcomoeba, Undercity Informer, Pawn of Ulamog

Color identity: UB
Mana cost: {1}
Steps:
  1. Activate Undercity Informer by paying {1} and sacrificing Narcomoeba.
  2. When Narcomoeba dies, Mortuary and Pawn of Ulamog trigger.
  3. Resolve the Mortuary trigger, putting Narcomoeba on top of your library from your graveyard.
  4. Resolve the Pawn of Ulamog trigger, creating a 0/1 Eldrazi Spawn creature token.
  5. Resolve the Undercity Informer ability, causing you to put Narcomoeba into your graveyard from the top of your library.
  6. Narcomoeba triggers, returning itself to the battlefield from your graveyard.
  7. Activate the Eldrazi Spawn by sacrificing it, adding {C}.
  8. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite self-mill[END OF COMBO RESULT][END OF COMBO]

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