Is Assault Vest Espeon viable?

I have an Espeon who I use in battle sometimes. I gave her the Assault Vest, which boosts its special defense.

Velvet (Espeon)@Assault VestNature: ModestEVs: 252 Special Attack, 128 Special Defense, 128 Speed

Moveset:Shadow BallDazzling GleamPsyshockGrass Knot

Is this set good with the Assault Vest, or should I give her a different item/Moveset?

Pleaselog inorregisterto add a comment.

Espeon already has okay-ish Special Defense, but poor HP and horrible Defense. It is meant to be an offensive Pokemon, so Choice Specs works better.

After all, it can’t take STAB Super effective hits from the likes of M-Gengar anyway.

Tl;dr:Try Choiced items. Special Defense boost won’t last all that long.

Also, try another move other than Grass Knot. Signal Beams works, but you might also want to consider something else like a decent typed Hidden Power, if you can.

This is a good set because the assault vest highers the user’s Sp.D, but makes it only able to use attack moves. Since your espeon has only attack moves and status moves, IMO the assault vest is a great item because you are increasing Espeon’s already great Sp.D.