Question

You hav to rely completely on Egg Moves, TMs, and, MTs for this guy, unless you want to use Teleport. Thank goodness it has good enough Speed to allow for sweeping, cause it can't defend for s***. I think:

Psychic: STAB, good power, blah blah blah. You know by now what I have to say for moves, I don't think I have to explain some things.

Shock Wave: Takes care of those pesky Water types who seem to be everywhere.

Shadow Ball

Energy Ball: Grass Knot really is almost useless in LC isn't it?

Answer 1

Psychic(TM)-This is given, a STAB move on a sweeping Abra, who would've guessed.

shadow ball-Covers Ghost weakness

signal beam-covers dark weakness, assuming no occasional houndour. (I don't think he has to worry too much about bug types, seeing as most of the best bug Types are banned in LC)

Energy ball/ reflect/barrier-Energy ball can still cover those common water types, with higher power, and there's no need to worry about them having an ice type as well since ice isn't resistant to grass. Reflect and barrier boost his defense, your choice.

shock wave
hidden power (Type your team might need for balance.)