Your parents must be so proud... really stop doing it it is annoying..
anyway:
Do you like PUNY PUNs?
@life orb/leftovers
Timid
Justified
252 sp.attack, 252 speed, 4 HP
-Secret Sword
-Hydro Pump
-Hidden power Ghost/Hidden Power Ice
-Calm mind
Secret Sword is a realiable STAB it is better than Focus Blast by missing MUCH less and also 0HKOing blissey (I even don't need to calculate it is a 270 BP move aimed to the weaker defense stat..).
Hydro Pump- in OU there is not such thing accuracy vs. power if you don't hit hard enough it is the same as missing Hydro pump is much stronger compared to surf specially in the rain this move is the debasting move of keldeo if you don't resist expect atleast half of your HP gone and if you do it is like a 90 BP move.
HP ghost hits hard pokemons who resist STABs like celebi, lati@s, jellicent (u jelly?) and other stuff also fighting + ghost= perfect coverage.. while HP ghost is good sometimes it won't hit hard enough some grass and dragon types specially dragonite or amoongus so HP ice comes to patch this thing..
Keldeo doesn't have a nasty mind thus don't have nasty plot and need to use calm mind to raise his sp.attack .
Pony By Choice.
@choice specs
Timid/Modest
252 sp.attack, 252 speed, 4 HP
Justified
-Hydro Pump
-Secret Sword
-HP Ghost
-Icy Wind
This set have immediate power compared to the CM set the moves do the same but Icy wind is kind of filler to hit dragonite and double weaknesses better as you don't really have a 4th spot..
Other Options:
Aqua Jet,Physical set,Resolution Form,Focus Blast,Surf, defensive,reflect,sub,Taunt
Aqua Jet- might work to finish off an opponent as a filler if you need to revenge kill a sashed pokemon like alakazam.. but yeah that's all the use
Physical- even at +2 Keldeo isn't too intimidating.. and also I am not sure if you are forced to run resolution form with secret sword.
Resolution form- if you can to not use it better it tells the opponent 1 of your moves and if you have to use it then the physical set also loses his surprise factor.
Focus Blast- AKA focus miss.. misses at critical moments also don't KO blissey so why should you use it? power? it misses too much.
Surf- too weak for OU if you really want to sweep use full power.
Defensive- only 91/90/90 defenses and adds nothing new to support.
Reflect can be used with calm mind to increase the unboosted stat but I am not sure if it worth it
Sub- works good on the CM set countering ditto a +.
Taunt- prevent set ups if you need a filler move use this.
Brace yourself MLP puns are comming.