How can you create a combo with Ayara, First of Locthwain, Tree of Perdition, Dollhouse of Horrors?
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[START OF COMBO]This combo can be formed with Ayara, First of Locthwain, Tree of Perdition, Dollhouse of Horrors

Color identity: B
Mana cost: {1}
Steps:
  1. Activate Dollhouse of Horrors by paying {1}, tapping it and exiling Tree of Perdition from your graveyard, creating a token copy of Tree of Perdition that is a 0/0 Construct with haste.
  2. When the Tree of Perdition token enters the battlefield, Ayara triggers.
  3. Holding priority, activate the Tree of Perdition token by tapping it, swapping an opponent's life total with Tree of Perdition's toughness.
  4. Resolve the Ayara trigger, causing you to gain 1 life and each opponent to lose 1 life.
  5. The opponent whose life total was swapped loses the game due to having zero or les life.[END OF COMBO STEPS]

Result:
  - Near-infinite lifeloss for target opponent
  - Target opponent loses the game[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Ayara, First of Locthwain must be on the battlefield
  - Tree of Perdition must be in the graveyard
  - Dollhouse of Horrors must be on the battlefield
  - You do not control a Construct.
[END OF COMBO PREREQUISITES]
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