Add The GenV Battle Box To PC

[Pythonhier]

"The Battle Box is a feature introduced in Generation V. It allows the player to store six Pokémon, which can be used instead of the current party in infrared link battles, the Battle Subway, and Random Matchup in Generation V, and the Battle Maison and the Battle Spot in Generation VI.
Tournaments which utilized the "Battle Competition" feature required its use; therefore, all the Global Battle Union tournaments required it. Once the user of the Battle Box registered their Pokémon team for an official tournament that used the "Battle Competition" feature, the team was locked in the Battle Box and could not be modified (even the reordering of moves) or removed from the Box until the end of the competition.
In Generation V, the Battle Box was a separate feature from the Storage Boxes and had to be selected from the menu of Amanita's PC. In Generation VI, the Battle Box became accessible from the Boxes directly, acting itself as the last Box in the line-up." http://bulbapedia.bulbagarden.net/wiki/Pokémon_Storage_System#Battle_Box

This same system can be, and should be, used in our PC box system on PokeMMO.  Especially since trying to get into low ranking matchups like UU, and NU, takes a very long time, having the ability to do other things with a PVE team while waiting to get into a battle would 10x more beneficial than what we currently have.  Also will reduce the amount of people just standing around waiting to get into matches, and gives them a reason to continue to actually play the game.

Add another box or section to the PC called the Battle Box (or other name variant).  This box can contain 6 Pokemon.  When you enlist in joining a PVP match have the option to use the Pokemon listed in Battle Box, or the Pokemon listed in your Party.

Another idea would be to add multiple lists to the battle box for each ranked setting, but I don't see that being needed when you could just goto the PC and change your battle box before registering to battle.
 

Credit to this guy;