The Kingdra I use a mainly a special attacker. My main team is split 50/50 between physical (Metagross, Mamoswine, Mienshao) and special attackers (Zapdos, Volcarona, Kingdra) for adaptability. It also acts as a Rain Team counter, along with my Zapdos' Thunder and Volcarona's Hurricane.
The World Ends With You 2 in 2012? I sure hope so! Official Shiny Victini of the Pokemon B/W 2 and PMD: MMM boards.
I myself have gone along the lines of a Bulky variant (focusing on the special side of things)
Rest Sleeptalk Hydropump Draco meteor
Provided rain is up, you can almost always get in the first rest with a little speed investment, and with 75/95/95 defences, its nothing to be sniffed at. Its a little different to what is expected and it only really has to worry about other dragons, and provided the right speed investment is used, Draco meteor can usually deal with anything not called multiscale dragonite.
It may be outclassed in a few ways by physical orientated and special orientated attackers, but i still like my variation of kingdra.
Black FC: 2666-8397-4718 Author of the Starfox Story on the Starfox Assault board. Check it out! Don't Fear the Reaper