The good old wish upon a star deal for Jirachi came back with the new moves in Diamond, Pearl and Platinum. And it only added to its forhead OU sign. For those of you who don't know, most of the information is from Smogon University, Serebii, Marriland, DevianArt and Google Images.
Jirachi?The Wish Pokémon. Said to appear every 1,000 years, it awakens if you sing to it in a voice of purity. According to legend, it will grant any wish that is written on the Wish Tags attached to it's head when it awakens. If it senses danger... it will fight without awakening.
Weight: 2.0 lbs
Height: 1'00"
Evolution: Jirachi
Type: Steel & Psychic
Base Stats: 100 HP / 100 Attack / 100 Defence / 100 Special Attack / 100 Special Defence / 100 Speed (highlight if hard to read)
Ability: Serence Grace
For only appearing once, in its own movie, this legendary surely came from the stars right away. It can either be your doom or your savior in battle if used correctly. Of course any legendary would be carefully looked at but abused if it looks good, but let's take a closer look at the crest of this pokemon's power.
Jirachi's ability makes it an obvious choice for any team. Just slap on some elemental moves and you got more chance at the hax already. This pokemon can make for one sweet revenge killer thanks to this ability.
But the most favorable thing about this pokemon is the move pool, as it can be used as support or as a sweeper. As it levels up, there aren't many choices except for Wish, Healing Wish and Doom Desire; which can make a great combination for the support moveset. Using TMs/HMs, you could add Calm Mind, Toxic, Reflect, Light Screen, Substitude, Thunder Wave, Trick, Rain Dance, Stealth Rock or Trick room to the set, making this Jirachi great for setting up most teams. With max HP and Defence, Jirachi can survive a max Attack Rampardos's Earthquake by 46.5% - 55% (Rampardos's base attack is 165.)
As for it's sweeping side, some can say it's just as amazing. Zen Headbutt brings up the first flinching move that it can learn. If you are free to choose from tutor moves, however, then you may also pick Iron Head which does the same except it is a steel type move. The flinch-rachi is one of the popular sets. The tutors in D/P opened the choice of elemental punches, so a plus from the flinching there is paralyze, burn and freeze hax. There are only four spots for you to fill in, do so wisely. As there is also Body Slam, Last Resort and U-Turn for the additional scouting.
That's not the end of this section, Jirachi can also be a beast on the special attacks! It's stab Psychic and 20% chance of lowering the target's Special Defence makes this move a pretty good first choice. There is also Water Pulse to go with Rain Dance, if you are looking to give your opponent a worst time with luck. Jirachi can also give a powerful stab Flash Cannon or a possible paralyze with Thunder, or Thunderbolt. There is also Grass Knot(or Energy Ball), and Ice Wind which can be used to slow down and 2OHKO dragon-types. Hidden Power is always an option if you feel that these mentioned attacks aren't enough.
It's stats makes people jump right into it, however, even if it is an average in all stats it may not be so great in battles without proper training. This is due to it being a legendary so you cannot breed it for perfect ivs and nature. (You can soft-retted, though.) Jirachi started out good from the beginning as it came out in the Advance game. But with the new generation that set forward the updates, it also gave this poke it's title as the overused, haxing rachi. So if you wish to defeat this in battle, keep it in mind and be ready for it!
Perhaps those guys who made pokemon shoulda thought twice on Jirachi before creating it -but I'm surely not complaining! Jirachi came to be my signature pokemon, earning my the title between friends as the hax queen. Feel free to tell me if I made a mistake or if there is something to add. ~Vixanz 
