Just a couple of Sets I randomly came up with and I wanted to post them. Lets see how well I do, as these are some of the very first extensive sets that I have come up with.
Calm mind/Special Sweeper/Dakrai Counter
Kerudio@Swimming Goggles
Ability: Justice Heart
Nature: Hasty/Timid
EVs: 4 HP/252 SpA/252 Spe
-Hydro Pump
-Sword Of Mystery
-HP Ice
-Calm Mind/Surf/Boiling Water
There are a few things that make Kerudio the ULTIMATE Darkrai counter. Firstly, it is a fighting type which resists Darkrai's signature Dark pulse. Secondly, because of Kerudio's special ability-Justice Heart-It absorbs and nullifies all dark attacks (hopefully including dark void) and whenever it is hit by one, it raises its attack. This will prevent it from falling asleep, which renders Darkrai powerless to watch in fear while it is utterly taken down by a STAB Super effective Sword Of Mystery or Mystery Sword with Kerudio's Awesome 129 Base SpA and it's soft physical defenses (Which would be even more powerful with Calm Mind, should you choose to put it in the moveset). Thirdly is Kerudio's Item, Swimming Goggles. Swimming goggles do three main things: Raise its speed, which will probably allow it to outspeed Darkrai; raises its accuracy, which allows it use use STAB hydro pump and not miss as much; and puts all pokemon who aren't water type to sleep. This renders the "Trick or Treat" Darkrai useless as well because if it tricks Kerudio, Darkrai gets put to sleep.
For the moveset, Hydro pump would be the water STAB move of choice because the swimming goggles increase accuracy. Focus blast is the Fighting STAB move of choice, as it does special damage. HP Ice Is also a good thing to use because it helps get rid of those pesky Grass type and Dragon type pokemon that could wall Kerudio. The last move Is basically your choice, though calm mind is recommended, as it boosts the power of all the special moves Kerudio Has in it's repertoire.
Swords Dance (Physical Sweeper)/Dakrai Counter
Kerudio@Swimming Goggles
Ability: Justice Heart
Nature: Hasty/Jolly
EVs: 4 HP/ 252 Atk/252 Spe
-Aqua Jet
-Close Combat
-X-Scissor/Poison Jab/other
-Swords Dance
The Physical Side Of Kerudio's Movepool and defenses, which opens it up to a lot broader of a movepool. Again, for the reasons listed above, it makes an awesome Darkrai counter. This time, though It will need to have Swords dance at the ready because it only has a measly attack stat of 70 (well measly compared to most ubers) but getting one or two sword dances in makes it a very powerful force to be reckoned with. With a STAB Priority move and STAB Close combat, it can really tear into things that are even neutral to it.
For the moveset, Aqua Jet is your Priority STAB which is really helpful in dealing with things that could threaten you. Close Combat is another STAB which is really powerful and hit Darkrai and Blissey for super effective hits in their soft physical defenses. X-Scissor/Poison Jab is something I kinda just threw in there to kill those pesky Grass types that can wall/kill you, you can replace that with anything. Swords dance is really needed here, as you need to boost that measly attack stat.
This Generation looks really interesting and with all the type combinations, it looks like Uber battling is gonna change a lot. Kerudio is definitely going to change the way people use Darkrai, as it went basically without a counter for Generation 4. Kerudio will now make Darkrai/Other pokemon have either Psychic or Electric moves standard, but with the right partner, it can overcome both of those. I cant wait! Until then:
-Lugia
EDIT: Hmmm..... If swimming goggles aren't real, then this post might need some revising. Also, if its ability doesn't absorb dark attacks..... then I might as well just delete this whole thread, as the ability is basically the cornerstone for both of these sets..... Hmm, I'm going to have to just keep watching and pray that Justice Heart comes through, and if it doesn't, oh well. I guess I tried xD