Yawgmoth, Thran Physician, Strangleroot Geist, Young Wolf, and Blood Artist

Prerequisites

• Yawgmoth, Thran Physician on the battlefield
• Strangleroot Geist on the battlefield
• Young Wolf on the battlefield
• Blood Artist on the battlefield
• Your life total is at least 2

Steps

1. Activate Yawgmoth by paying 1 life and sacrificing Strangleroot Geist
2. Strangleroot Geist dies, triggering its undying ability and Blood Artist
3. Resolve the Strangleroot Geist trigger, returning it to the battlefield with a +1/+1 counter on it
4. Resolve the Blood Artist trigger, causing target player to lose 1 life and you to gain 1 life
5. Resolve the Yawgmoth ability, putting a -1/-1 counter on any creature you don't control
6. Activate Yawgmoth by paying 1 life and sacrificing Young Wolf
7. Young Wolf dies, triggering its undying ability and Blood Artist
8. Resolve the Young Wolf trigger, returning it to the battlefield with a +1/+1 counter on it
9. Resolve the Blood Artist trigger, causing target player to lose 1 life and you to gain 1 life
10. Resolve the Yawgmoth ability, putting a -1/-1 counter on Strangleroot Geist
11. Activate Yawgmoth by paying 1 life and sacrificing Strangleroot Geist
12. Strangleroot Geist dies, triggering its undying ability and Blood Artist
13. Resolve the Strangleroot Geist trigger, returning it to the battlefield with a +1/+1 counter on it
14. Resolve the Blood Artist trigger, causing target player to lose 1 life and you to gain 1 life
15. Resolve the Yawgmoth ability, putting a -1/-1 counter on Young Wolf
16. Repeat from step 6

Results

• Each opponent loses the game
• Infinite death triggers
• Infinite ETB
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite LTB
• Infinite sacrifice triggers