I have a few myself.
Whimsicott@Leftovers
Ability: Prankster
252 HP / 4 Atk / 252 Speed
Nature: Jolly
~ Worry Seed
~ U-Turn
~ Leech Seed
~ Encore
You might be wondering "LOLWUT why Worry Seed?" Well, it packs quite a suprise. You know that Doryuuzu that keeps taking out all of your pogemanz? Well, Worry Seed it and it won't be as fast as it was. That Ludicolo/Kabutops abusing the rain? Worry Seed them and they'll be slow again. Omg Poison Heal Gliscor? Worry Seed says "well, you're poisoned and it hurts now" same with Breloom, Skill Link Cloyster etc. Encore is for Set Up users, Leech Seed to take out that extra health and U-turn to retreat when things look bad.
Nidoking@Life Orb
Ability: Sheer Force
4 HP / 252 Sp. Atk / 252 Speed
Nature: Timid
~ Earth Power
~ Flamethrower
~ Ice Beam
~ Thunderbolt
Dear God this thing is amazing. While it does run up to 295 Speed, this thing outruns quite a few Pokemon, and with quite a coverage to match. Thanks to Sheer Force, Life Orb damage is NEGATED, meaning it gains a helpful boost all without the recoil. Anyone seeing all those pesky Gliscors running around? Welllll, this thing outspeeds and proceeds to OHKO it back with Ice Beam. Have some mad prediction skills and know your opponent has a Gyarados? Welllll, OUTSPED and OHKO'd by Thunderbolt. Heck, if Heatran isn't scarfed Nidoking with OHKO, and if you have trouble with pesky Brelooms? OHKO'd with Flamethrower.
Alakazam@Life Orb
Ability: Magic Guard
4 HP / 252 SAtk / 252 Spd
Nature: Timid
- Substitute/ Energy Ball / Shadow Ball
- Calm Mind
- Focus Blast
- Psyshock
You might be asking yourself right now "Wtfudge, why is this guy posting two UU Pokemon?" Well, these two Pokemon are amazing in the OU tiers, as I myself use them, heck, they are even good just sending them out due to having the element of suprise and may lead to the foe swapping Pokemon, anyways, back to Alakazam. OMGYES a faster Reuniclus, well, actually, the thing that sets these two apart is the fact that Alakazam is much, much frailer then Reuniclus, with bad enough HP. But,
do not let that stop you from using Alakazam. Alakazam is amazing, reaching the very fast speed of 372, allowing him to outspeed and KO or dent almost any Pokemon in the metagame. Anyways Alakazam gained a new and very dangerous toy over this Generation transition in the Physical hitting yet Special move Psyshock, allowing it to hit and kill Chansey and any other Special Walls. Focus Blast is for coverage and Calm Mind does so many wonders with Alakazam, but use it only when you think you can, due to the frailness of this Pokemon, using this has a high risk/high reward factor, inso that Calm Mind provides you with much higher Sp Atk that isn't already needed to kill off most Pokemon. Substitute is there (yes, I know Alakazam already ignores most status problem damage) for blocking off crippling paralysis, as a slow Alakazam is, alas, a dead Alakazam. Energy Ball can be used if you think you'll have issues with Bulky Water types, Shadow Ball is also an option should you want to hit opposing Psychics or Ghosts for super effective damage.