You have a way to give Nomads en-Kor indestructible.
You have a way to target Nomads en-Kor with any amount of damage at instant speed.
Delina does not have summoning sickness.
Steps
Declare Delina as an attacker.
Delina triggers, creating at least one 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 4 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 15, 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 15, dealing 1 damage to Brash Taunter and 1 damage to Nomads en-Kor.
Repeat from step 15 one additional time, with the nontoken Ghyrson Starn triggering instead of the token Ghyrson Starn.