Fanatics come fight here! ( 20th level gladiator arena )

Initiative:

19

Me need to go first!! ME ROLL.... 16

I FEEL IT COMING!!!! Haa...... haaaaaa............ hhhhhhhhhhhaaaaaaaaaaaaaaaaaa!!!!!!!!!!!!!!!! I am an ancient red dragon with the homebrew content!!! The ancient dragon staff gives me the power it need!!!!

On may turn I will shoot you with my bow:

39 damage.11

32 damage.10

31 damage.17

28 damage. 11

32 damage. 13

29 damage. 11

28 damage. 14

35 damage.13

And grasping arrow does 13

Now my pet Decidueye will attack you and use spirit shackle:

8 damage28

save for the fire breath:16

I breath fire on you. make a DC 24 DEX saving throw. 82 damge

decidueye will attack again:

26 damage. 41

you take 2d6 + 10 damage on first attack

18

Second attack is critcal so 4d6 +10

20

Ok, you win.

Me and Oathofcheeseballs will have a 2v2 battle against any unlucky adventures who dare to accept!

Why don't you allow Epic Boons?  Those would make the fighting more interesting.  It would remain fair if all players had an equal amount of Epic Boons.  

Anyone want to battle me?

https://www.dndbeyond.com/profile/Oathofcheeseballs/characters/64878944

I will:

https://www.dndbeyond.com/profile/IsaacLinenfelser/characters/64696411

Initiative:

14

20

intitiative: 10

28 damage. 16+37+10

19 damage. 19+7

As a bonus action I'll cast blade of disaster:

21 damage.39

30 damage.20

I cast chromic orb with a 18