Optophobe
Oooh I'd be up for this!
I could see royals and nobles placing bets and gambling on their chosen gladiators!
That's the idea. The nobles would be sponsoring a chosen gladiator throughout their tournament, something like the capital during hunger games although no helpful gifts in the games. While the gladiators fight for their lives, the nobles would be betting who wins. I'm thinking either we have it so that gladiators fight NPC's so that player characters don't for just fighting, or the games are lighter where it's beat down the competition.
It will also be more fantasy based so monsters such as chimera appear instead of enemy gladiators.