How should I EV train Beautifly and some good moves?

Question

Trachy, I know your pretty good at this sort of stuff.

Answer 1

EV train in Special Attack, Speed, and HP. Teach it:

Stun Spore: The only chance this guy has to do anything.

Bug Buzz: STAB.

Shadow Ball: Gives this guy type coverage against Ghost types.

Hidden Power Ground/Psychic: Hidden Power Ground provides type coverage against five types, while Psychic is just there if you can't get a good Hidden Power.

Answer 2

Teach it (Bugg Buzz-Giga Drain/Energy Ball-Stun Spore-Psychic)
EV train it 252 in sp.atk, 252 in speed,4 HP or 4 Sp.def