Seeking suggestion for wind devil build improvement

Since we can have permanent wind devil build now, i am trying to play a character with the mythical codex of eternal storm.The trozan set seems to compliment well with the build, so i will use trozan sky shard for my main attack skill.

This is the link for GT reference

I put 1 point each in briarthorn for the buff and to trigger some devotion, should i just ditch it and put the point else where like wendigo totem for life support or just pump in storm totem for more damage?

Do turtle and ghoul actually helps or i should change to other devotion?

I thought of using shaman and oath keeper for more tanky build and more resistance reduction from celestial presence but i haven’t try to set it up in GT yet, will it be more comfortable compare to arcanist while providing more resistance reduction? Or the bonus spirit % from arcanist will be better overall?

Thanks in advance.