Mindslaver, and Volrath's Dungeon

Prerequisites

• Mindslaver on the battlefield
• Volrath's Dungeon in hand
• The opponent after you in turn order has a life total that is divisible by 5
• available

Steps

1. Cast Volrath's Dungeon for
2. Target the opponent who's turn is after yours with Mindslaver
3. On their turn, force them to pay 5 life to destroy Volrath's Dungeon while holding priority
4. With the destroy trigger on the stack, repeat this process until they have 0 life

Results

• Target player loses the game