Heartless Hidetsugu + Archfiend of Despair

Prerequisites

• Each opponent has an even life total.
• Heartless Hidetsugu does not have summoning sickness.

Steps

1. 1Activate Heartless HIdetsugu by tapping it, dealing damage to each player equal to half their life total, rounded down.
2. 2At the beginning of your end step, Archfiend of Despair triggers, causing each opponent to lose life equal to the life they lost this turn.
3. 3Each opponent loses the game due to having 0 or less life.

Effects

• Each opponent loses the game
• Near-infinite damage to all players
• Near-infinite lifeloss