Metagross Moveset

[Ozma9719]

I'm trying to decide which 4th move to give to my Metagross. Maybe Shadow ball?

Meteor Mash
Earthquake
Psychic
???(I have Iron Defense now.)

[Pidgeotto Trainer]

Definately Shadow Ball.
It is a Lati@s killer. Ghost is the only non-special attack type thats super-effective against Lati@s. Lati@s has incredible special defense but much less defense. Plus, Metagross has the incredible attack.

[Ozma9719]

Alright, thanks.