You know how in an NRP you spend you much time making your nation, fleshing out the people, building histories, creating cultures and of course manufacturing a grand army, only for the NRP to die before you get to the part where you can use your epic army?

This is just an idea I had that people could use their Nations they've made for various NRPs and fight it out in an arena styled battle. No real lore, no real reason, just a good old fashion battle. Think like mutli-verse arena or Deadliest Warrior but with armies.

You can either just duke it out with numbers and stats and die rolls and all the fun stuff or just do it as an arena battle. Basic rules would  included don't suddenly pull out an extra army or a missile from your rectum without saying you have one before hand and agree on a time period. I can't see fantasy dwarves do too well against a space faring empire with orbital strikes (unless that's you liking).

So, anyone think this would be interesting or would this just fall flat?