>>30963290I don't feel like Assault Vest is worth it until his HA is released.
However, I think you could go for either Leech Life or U-turn.
An slow U-turn could be good to scout hits and allow another fragile Pokémon switch in without fear of losing half of his HP.
On other hand, Leech Life is his only damaging recovery move, so he doesn't get worn down too easily.
I say U-turn, unless you want him to last longer.