Imagine a scenario where players of the same clan have a dispute or rather a challenge on whose base is better and whose attacking strategies are more effective, but nothing can be seen on grounds. So I was thinking, what if there was an arena option where these two players can battle it out to find out whose better.

The same winning formula of clan wars can also be applied here and
Rewards could be that of which the players bet upon, for example they both agree to bet on 500,000 elixr each, thus the winning party takes it all. Which makes it 1,000,000 elixr.

But that's just scratching the surface, with your astounding ideas u can polish it to become the next best feature of the game.

Supercell Rocks!!!!!