Tree of Perdition, Dollhouse of Horrors, and Terror of the Peaks

Prerequisites

• Tree of Perdition in the graveyard
• Dollhouse of Horrors on the battlefield
• Terror of the Peaks on the battlefield
• available

Steps

1. Activate Dollhouse of Horrors by paying , 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. The Tree of Perdition copy enters the battlefield, triggering Terror of the Peaks
3. Holding priority, activate the Tree of Perdition copy by tapping it, exchanging its toughness with target opponent's life total
4. Resolve the Terror of the Peaks trigger, dealing damage equal to the Tree of Perdition token's power to each opponent
5. The opponent whose life total was swapped loses the game due to having zero or les life

Results

• Near-infinite lifeloss for target opponent
• Target opponent loses the game