Ghyrson Starn, Kelermorph, Nomads en-Kor, Brash Taunter, and Sakashima the Impostor

Prerequisites

• Ghyrson Starn, Kelermorph on the battlefield
• Nomads en-Kor on the battlefield
• Brash Taunter on the battlefield
• Sakashima the Impostor on the battlefield
• You have a way to give Nomads en-Kor indestructible
• You have a way to target Nomads en-Kor with any amount of damage
• Sakashima the Impostor on the battlefield as a copy of Ghyrson Starn

Steps

1. Give Nomads en-Kor indestructible, if needed, and then target Nomads en-Kor with any amount of damage
2. Holding priority, activate Nomads en-Kor by paying , causing the next 1 damage that would be dealt to it to be dealt to Brash Taunter instead
3. Repeat step 2 until only 1 damage will be dealt to Nomads en-Kor
4. Resolve the spell or ability, dealing 1 damage to Nomads en-Kor and any remaining damage to Brash Taunter
5. Ghyrson Starn and Sakashima the Impostor trigger for the damage dealt to Nomads en-Kor, along with Brash Taunter
6. Ghyrson Starn and Sakashima the Impostor also trigger for the damage dealt to Brash Taunter if exactly 1 damage was dealt to it
7. Resolve the Brash Taunter trigger, dealing at least 1 damage to an opponent
8. Resolve both Sakashima the Impostor triggers, dealing 2 damage to Nomads en-Kor, and 2 damage to Brash Taunter, if applicable
9. If Brash Taunter was dealt damage, it triggers, dealing 2 damage to an opponent
10. Resolve the Ghyrson Starn trigger from damage dealt to Brash Taunter, if applicable, dealing 2 damage to Brash Taunter
11. If Brash Taunter was dealt damage, it triggers, dealing 2 damage to an opponent
12. Holding priority, activate Nomads en-Kor by paying , causing the next 1 damage that would be dealt to it to be dealt to Brash Taunter instead
13. Resolve the Ghyrson Starn trigger from damage dealt to Nomads en-Kor, dealing 1 damage to Nomads en-Kor and 1 damage to Brash Taunter
14. Sakashima the Impostor triggers twice, and Brash Taunter triggers once
15. Resolve the Sakashima the Impostor trigger from damage dealt to Brash Taunter, dealing 2 damage to Brash Taunter
16. Brash Taunter triggers, dealing 2 damage to an opponent
17. Resolve the Brash Taunter trigger from step 13, dealing 1 damage to an opponent
18. Holding priority, activate Nomads en-Kor by paying , causing the next 1 damage that would be dealt to it to be dealt to Brash Taunter instead
19. Resolve the Sakashima the Impostor trigger from damage dealt to Nomads en-Kor in step 13, dealing 1 damage to Brash Taunter and 1 damage to Nomads en-Kor
20. Repeat from step 13 one additional time, with the nontoken Ghyrson Starn triggering instead of Sakashima the Impostor
21. Repeat from step 13

Results

• Infinite damage