You have a way to give Nomads en-Kor indestructible.
You have a way to target Nomads en-Kor with any amount of damage.
({3} magic symbol) ({U} magic symbol) available.
Steps
Cast Irenicus's Vile Duplication by paying ({3} magic symbol) ({U} magic symbol) , creating a nonlegendary token copy of Ghyrson Starn.
Give Nomads en-Kor indestructible, if needed, and then target Nomads en-Kor with any amount of damage.
Holding priority, activate Nomads en-Kor by paying ({0} magic symbol) , causing the next 1 damage that would be dealt to it to be dealt to Brash Taunter instead.
Repeat step 3 until only 1 damage will be dealt to Nomads en-Kor.
Resolve the spell or ability, dealing 1 damage to Nomads en-Kor and any remaining damage to Brash Taunter.
Ghyrson Starn and the Ghyrson Starn token trigger for the damage dealt to Nomads en-Kor, along with Brash Taunter. Ghyrson Starn and the Ghyrson Starn token also trigger for the damage dealt to Brash Taunter if exactly 1 damage was dealt to it.
Resolve the Brash Taunter trigger, dealing at least 1 damage to an opponent.
Resolve both Ghyrson Starn token triggers, dealing 2 damage to Nomads en-Kor, and 2 damage to Brash Taunter, if applicable.
If Brash Taunter was dealt damage, it triggers, dealing 2 damage to an opponent.
Resolve the Ghyrson Starn trigger from damage dealt to Brash Taunter, if applicable, dealing 2 damage to Brash Taunter.
If Brash Taunter was dealt damage, it triggers, dealing 2 damage to an opponent.
Holding priority, activate Nomads en-Kor by paying ({0} magic symbol) , causing the next 1 damage that would be dealt to it to be dealt to Brash Taunter instead.
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.
The Ghyrson Starn token triggers twice, and Brash Taunter triggers once.
Resolve the Ghyrson Starn token trigger from damage dealt to Brash Taunter, dealing 2 damage to Brash Taunter.
Brash Taunter triggers, dealing 2 damage to an opponent.
Resolve the Brash Taunter trigger from step 14, dealing 1 damage to an opponent.
Holding priority, activate Nomads en-Kor by paying ({0} magic symbol) , causing the next 1 damage that would be dealt to it to be dealt to Brash Taunter instead.
Resolve the Ghyrson Starn token trigger from damage dealt to Nomads en-Kor in step 14, dealing 1 damage to Brash Taunter and 1 damage to Nomads en-Kor.
Repeat from step 14 one additional time, with the nontoken Ghyrson Starn triggering instead of the token Ghyrson Starn.