Aphotic Wisps, Cruel Bargain, Doomsday, K'rrik, Son of Yawgmoth, Mikaeus, the Unhallowed, Sacrifice, Viscera Seer, and Walking Ballista

Prerequisites

• Aphotic Wisps in hand
• Cruel Bargain in your graveyard or in your library
• Doomsday in hand
• K'rrik, Son of Yawgmoth on the battlefield
• Mikaeus, the Unhallowed in your graveyard or in your library
• Sacrifice in your graveyard or in your library
• Viscera Seer in your graveyard or in your library
• Walking Ballista in your graveyard or in your library
• Your life total is at least 34

Steps

1. Cast Doomsday by paying 6 life, searching your library and graveyard for Cruel Bargain, Sacrifice, Mikaeus, Walking Ballista, and Viscera Seer, exiling all other cards from your graveyard and library, and then placing the remaining cards on top of your library in the order previously listed and losing half your life, rounded up
2. Cast Aphotic Wisps by paying 2 life, targeting K'rrik, causing you to draw a card
3. Cast Cruel Bargain by paying 6 life, causing you to draw four life and losing half your life, rounded up
4. Cast Sacrifice by paying 2 life and sacrificing K'rrik, adding
5. Cast Mikaeus by paying
6. Cast Viscera Seer by paying
7. Cast Walking Ballista by paying
8. Activate Viscera Seer by sacrificing Walking Ballista
9. Walking Ballista undying ability triggers, returning it to the battlefield and putting +1/+1 counter on it
10. Activate Walking Ballista by removing +1/+1 counter, dealing 1 damage to any target
11. Repeat from step 8

Results

• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite scry 1