Offspring's Revenge, Tree of Perdition, and Terror of the Peaks

Prerequisites

• Offspring's Revenge on the battlefield
• Tree of Perdition in the graveyard
• Terror of the Peaks on the battlefield

Steps

1. At the beginning of your combat phase, Offspring's Revenge triggers, exiling Tree of Perdition from your graveyard and creating a 1/1 copy of it 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 1 damage the opponent whose life total was swapped
5. The opponent loses the game due to having zero or les life

Results

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