K'rrik, Son of Yawgmoth, Pestilence Demon, and Eldrazi Monument

Prerequisites

• K'rrik, Son of Yawgmoth on the battlefield
• Pestilence Demon on the battlefield
• Eldrazi Monument on the battlefield
• You have a way to give Pestilence Demon lifelink
• Your life total is at least 3

Steps

1. Give Pestilence Demon lifelink by any method
2. Activate Pestilence Demon by paying 2 life, dealing 1 damage to each creature and player and gaining life equal to the damage dealt this way
3. Repeat

Results

• Infinite damage
• Infinite lifegain
• Infinite lifegain triggers