How can you create a combo with Vesperlark, Body Double, Yahenni, Undying Partisan?
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[START OF COMBO]This combo can be formed with Vesperlark, Body Double, Yahenni, Undying Partisan

Color identity: WUB
Mana cost: 
Steps:
  1. Activate Yahenni, Undying Partisan by sacrificing Body Double.
  2. When Body Double leaves the battlefield, its Vesperlark ability triggers, returning itself from your graveyard to the battlefield as a copy of Vesperlark.
  3. Resolve the Yahenni, Undying Partisan ability.
  4. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Vesperlark must be in the graveyard
  - Body Double must be on the battlefield
  - Yahenni, Undying Partisan must be on the battlefield
[END OF COMBO PREREQUISITES]
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