i was thinking in a similar idea, example, 1 vs 1 enter to pvp, both players with arcane ring with their respectively gems class, same with the armor, both with example "planar armor helm" full gems of their class, and pet may vary, but the same category "arcane, legendary etc." and the other thing, that could be great and a real competition of the players and the winner will be the best strategy and inteligent in the use of their resources. And the sparring room sound really cool