How can you create a combo with Whisper, Blood Liturgist, Necrotic Ooze, Black Carriage, Abhorrent Overlord?
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[START OF COMBO]This combo can be formed with Whisper, Blood Liturgist, Necrotic Ooze, Black Carriage, Abhorrent Overlord

Color identity: B
Mana cost: 
Steps:
  1. During your upkeep, activate Necrotic Ooze using Whisper's ability by tapping it and sacrificing two other creatures, returning Abhorrent Overlord from your graveyard to the battlefield.
  2. When Abhorrent Overlord enters the battlefield, its first ability triggers, creating at least four 1/1 Harpy creature tokens.
  3. Activate Necrotic Ooze using Black Carriage's ability by sacrificing Abhorrent Overlord, untapping Necrotic Ooze.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Return all creature cards from your graveyard to the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Whisper, Blood Liturgist must be in the graveyard
  - Necrotic Ooze must be on the battlefield
  - Black Carriage must be in the graveyard
  - Abhorrent Overlord must be in the graveyard
  - Necrotic Ooze does not have summoning sickness.
  - You control at least two additional creatures.
  - It is your upkeep.
[END OF COMBO PREREQUISITES]
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