K'rrik, Son of Yawgmoth, Leshrac's Sigil, and Pontiff of Blight

Prerequisites

• K'rrik, Son of Yawgmoth on the battlefield
• Leshrac's Sigil in hand
• Pontiff of Blight on the battlefield

Steps

1. Cast Leshrac's Sigil by paying 4 life, enabled by K'rrik's ability
2. When you cast Leshrac's Sigil, each creature you control's extort ability from Pontiff of Blight triggers
3. Resolve an extort trigger by paying 2 life as enabled by K'rrik, causing each opponent to lose 1 life and gaining 3 life
4. Resolve seven additional extort triggers, netting 7 additional life
5. Activate Leshrac's Sigil's last ability by paying 4 life, returning it from the battlefield to your hand
6. Repeat

Results

• Near-infinite lifegain triggers
• Infinite lifeloss