Pokémon Omega Ruby and Alpha Sapphire/Raising Champions

Pokémon isn't just about defeating the Elite Four and beating the game—it's also about raising your chosen Pokémon into a powerful fighting force. Whether it's for your own personal satisfaction or to fight your friends, you'll want your Pokémon to be the best they can be. To do that, you'll need to start planning early.

Go for the stats
Any two s will learn the same exact skills at the same levels, but they may have significantly different strengths. Start a game, pick your Starter, check out his stats, and then restart and pick the same Pokémon again. Odds are that at least one or two of his stats will be a bit higher or lower than they were before. So sometimes it pays to catch a wide variety of the same Pokémon, since some will be faster, some will simply be weaker in all categories. If you're trying to raise a champion, make sure you're starting with champion material.

HP (Hit Points)
This is the amount of damage your Pokémon can take before it faints. Obviously, the more the better, but don't overestimate the importance of HP. has more HP than any other Pokémon, but with a low Defense stat, many Pokémon can still knock it out in a few shots.

Attack
This stat affects the amount of damage your Pokémon deal when they use physical moves, and since Generation 4, this has no more links with the type of the move. On the other hand, you have Special Moves, which is influenced by the Special Attack. Physical moves are marked by in the sumary of your Pokémon. You also could give a look in the Move list. Attack is linked with Defense.

Defense
This is usually more important than HP. may not have a lot of health, but with a very high Defense score, most regular attacks will barely scratch its shell. However, a high Defense won't protect it from his weaknesses. No amount of Defense will save Nosepass from a Water attack. Defense is linked with Attack.

Special Attack
As said earlier, the Special Attack is not linked with type, so nothing is systematic. Special moves are marked by in the sumary of your Pokémon. You also could give a look in the Move list. Special Attack is linked with Special Defense.

Special Defense
This stat will define the resistance of your Pokémon to Special Moves, and is linked with Special Attack.

Speed
Speed is more important than you might think. Pokémon like have maybe not a terrible Defense, but with their lightning Speed ensuring they always go first, they can K.O. most foes before they even get a chance to fight back.

Get 'em while they're young
When you're catching a Pokémon you plan to use in battle, catch it as low a level as possible. Without the supervision of a trainer, wild Pokémon gain fewer stat points as they level up and may choose moves you don't want. So a level 20 Pikachu that you raised from level 5 will be much stronger than a level 20 Pikachu in the wild. Wild Pokémon may also have lost useful skills as they grow--a wild only knows how to use Harden, but one you raised from a  will also remember how to use Tackle and String Shot!