Thanks for the fast response! That makes sense about alakazam, I'd agree 240speed is a good number.You can EV it to outspeed base 120s (Alakazam) and dumping the remaining EVs into HP for a LO number or Atk for a stronger U-Turn. So your spread would look like: 16 HP or 16 Atk / 252 SAtk / 240 Spd with a Naive Nature.
What about transfering some special attack to attack to increase that u-turn damage? Or would that be silly to do since 3 of my attacks are special attacks anyways? Also would hydro pump OHKO a bold 160spD EV Klefki? I'm finding him to be quite common running the prankster thunder wave/swagger/substitute/foul play set