Theres no point for dark spark if you dont have any heal skill that needs blood, better go for endless blood to boost your howl of death dmg.
You dont need revive as a dd.
In an acid build i would allways have summoning mastery on at least rank 2.
You are missing out Poisoning Blood in booth builds.
Vamp builds dont need master summoner, phlebotomy + lurker gives you enough blood for howl + reanimation.
Shadowy Reach only important for fullheals.
Ill agree in most of the build from rinoa.
Vamp actually the best choice because of the dmg boost of determination ( effective like 180% more then profiency builds )
Wish acid would be better, loved my spider