What makes each of the 700+ different Pokémon unique? Well, they each have their own Stats and Skills, but there are other elements that set them apart. There are nearly 300 Abilities, for instance, that give Pokémon their own style. Odds are your Pikachu has Static, which gives it a 30% chance to paralyze enemies that hit it, but other 'mons have specialized elements that make them more useful in battle. But of those 300, 27 abilities have special out-of-battle effects that you may never have even heard about.
16 Pokémon have Flame Body, for example, which halves the time it takes for an egg to hatch; five have Magnet Pull, increasing the odds of encountering a Steel-type Pokémon by 150 percent; and eight Pokémon have Sticky Hold, making it easier to get a bite while fishing (which, as you might guess, makes Chain Fishing much easier). There are also “Hidden Abilities” that can be obtained--your Pikachu, for instance, might have Lightning Rod. Well, if you got it at the 2012 World Championships, that is. Did you? No. You didn’t. Stop lying.