Havoc Festival + Archfiend of Despair

Prerequisites

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Steps

1. 1At the beginning of each opponent's upkeep, Havoc Festival triggers, causing them to lose half their life total, rounded up.
2. 2At the beginning of their end step, Archfiend of Despair triggers, causing each opponent to lose life equal to the life they lost this turn.
3. 3The opponent whose turn it is loses the game due to having zero or less life.
4. 4Repeat during each other opponent's turn.

Effects

• Each opponent loses the game
• Near-infinite lifeloss