I don't know if he'll be showing this year, but I've been tossing some ideas around.
I thought of Resplendent Rhythm, but it kinda sounds more like a mare name. Audacious Aspect was another one. Using parts of his sire and dam's names isn't an option. He's by Brehm's Swede out of Toots Buttercup. Horrible, I know.
I've been more partial to one-word names lately.
Cavalier
Ascendant
Eminence
Authoritarian
Detonation
Chieftain
Combatant
Marvel
Advocate
Vanquish
Sovereign
Solstice
I don't know. I'm tired.