This is one of the best I have seen yet, I of course entered being that I freaking love Eevee and all its evolutions.
The competition format is as follows:
Only Eevee and its evolutions can be used
Battles will be held in rotation style battles
All entry Pokemon must be Kalos bred (meaning you have to have caught or bred it in Pokemon X/Y only) as per Play! Pokemon 2014 VG Rules
You cannot have more than one of the same pokemon in your battle box
More information can be found on the Global Link, Registration is going on now but space is limited so secure yourself a spot quick. The competition starts on the 10th of July
Best of Luck to all who enter