Make it 6* with 4*, 5* placers, spawns 4 times a day, drops gold and a chance of an alt book etc.
Don't make it yellowed out like the other gladiators; make it run around rampaging. Give a net skill (gladiator-ish right?) that is an AoE bolas, aggros other gladiators to fight players (or him, or each other... Just chaos
![Smile :)](./images/smilies/icon_e_smile.gif)
(Or even expand the daily gladiator quest and add a weekly xp bonus for downing the boss)
((tbh, this has probably already been suggested, but I felt like putting it back in the fray...))