Yes, it's Unown. Laugh all you want. And while I would post an overall description of Unown, I thik I'll just skip it, as that overall description would consist of one word: BAD. Of course, that doesn't prevent Unown from having amazing power. When confronted with one in a battle, the opponent is compelled to run out of pity.
And here is its magical moveset:
Unown @ Choice Specs
4 HP / 252 SpA / 252 Spe
~ Hidden Power
Unown in all its glory. HP Ice is for Dragonite and Mence, HP Fighting for TTar, and HP Psychic for STAB. For the most part, pray. There are no other options, really, altough a Scarf can be used instead of Specs.
And for comedy, here's another review on Unown, from another site:
This moveset brings out Unown's fullest potential to the light. His most powerful move, Hidden Power, rips through Magikarp, Hoppip, and Feebas with its unimaginable power, 2HKOing and OHKOing Magikarp and Hoppip with Hidden Power Ice, respectively. A neutral Hidden Power gives Feebas the ol' one-two-hit KO. When facing such opponents, Unown is unbeatable.
As if this wasn't proof enough of Unown's superiority, Hidden Power Ice OHKOs Salamence. Transporting to prehistoric ages, Unown can 2HKO the powerful T-rex, Tyranitar, with Hidden Power Fighting. And going even higher up on the evolutionary ladder, Groudon is 2HKOed by Hidden Power Ice.
Unown is just like Man; it dies to Pokémon with move. But for those who are unprepared for Man's—or rather, Unown's, for they are one and the same—unpredictability, they will too fall.
Anything that resists his mighty Hidden Power or has equally as mighty Special Defense beats the mighty Unown. Blissey, with her fatness stretching on for eternity, walls Unown for perpetuity, even if its Hidden Power is Fighting kung fu. Grumpig is an equally good candidate.
Ballom's Rating: 1/5. At least it can OHKO something.
Caution: This blog entry contains scenes of extreme prejudice and should not have been viewed by young children.