[@Nerevarine]

I really like the concept of the character. Having a gladiator fighting in Mortal Kombat makes sense. I also liked how you incorporated the whole "thumbs down" execution thing into his finishing move. The water powers seemed a little random and unnecessary though. Just stay focused on the gladiator angle, with the different weapons and whatnot at his disposal because I think that's a cool idea. I probably would've called him Klaudius though, but that's just me. I also wonder if he has to be from Earthrealm. If he was from Outworld he could have the typical gladiator backstory, being a slave that fought to the death in some kind of arena there. Just a suggestion, I don't have an issue with the current backstory it was just an idea that popped into my head. Maybe he was a slave to Shao Kahn that won his freedom by fighting in the Coliseum. Now he wants to kick Shao Kahn's ass so he fights for the good guys. 

Also, I made some slight tweaks to the default kharacter sheet in the OP, jsut so everyone knwos. I added a section for Homeworld and I suggested that you give your fatality a fancy name. Like "Toasty".