What about Lil' Kim Jynx?
Desistre (when the words desire and disaster unite in the wrongest of ways)
Type: Ice/Psychic
Abilities: Cute Charm / Magic Guard / Refrigerate (hidden)
HP: 65
Attack: 50(who cares anyway)
Defense: 60
Sp. Attack: 135
Sp. Defense: 100
Speed: 130
BST: 540
While Jynx is stupidly frail and useless, Desistre is very similar to Alakazam, only being slightly bulkier, faster and having a nifty Ice-type stab at its disposal. Sadly, it is still open to Sucker Punch and Bullet Punch. Despite that, it is still VERY fast and strong, as very few Pokemon can outspeed it, most of which are Megas. It would also learn Hyper voice via move relearner, as it becomes insane when coupled with Refrigerate. It could also go for a Magic Guard set to protect it from Stealth Rocks. And finally, in addition to Stealth Rocks, it should get some extra coverage, such as Scald and Vaccum Wave. With these conditions it shouldn't find too much hardships in OU, as it is very strong and fast, has some secrets such as Perish Song and Nasty Plot, and can cover just about anything with its movepool.