After Serebii/Bulbapedia, this is the greatest Pokémon resource on the internet. The ability to quickly test out teams before putting the effort into breeding and leveling them is priceless for a competitive player.
But keeping up with the metagame takes a ton of time, so ever since Gen VI ended I kind of just play Random Doubles
But keeping up with the metagame takes a ton of time, so ever since Gen VI ended I kind of just play Random Doubles