Tree of Perdition + Archfiend of Despair

Tree of Perdition

Archfiend of Despair

How it works

1. Activate Tree of Perdition by tapping it, causing its toughness to become equal to an opponents life total, and causing that opponent to lose life equal to the difference between their life total and Tree of Perdition's toughness as the ability resolved.
2. At the beginning of your end step, Archfiend of Despair triggers, causing the opponent to lose life equal to the life they lost this turn.