So I love the graphic of Vampire bats but the damage, DOT interval and recast time basically emiminate it from my general line-up. Even just looking at the damge - its way behind other spells that refresh quick enough to be used again it its place. I dont remember for sure if +spell damage (or is it Ability Modifier now) affected Vampire Bats.
Does anyone lvl 70 - 90 include Vampire Bats in their regular cast sequence? I'd love to find a way to make the spell stack up better against the others. I havent actually parsed it, but just looking at the damage on the description, I'm not even sure +spell damage did much at all and with it being piercing damage, none of the typical necro damage type modifiers work either - which also probably means it doesnt trigger Lich now that I think of it.
I noticed there is a 80+ upgrade for it ( forget what level it is) is it worth getting?
Incedently - I still use Dooming Darkness that hasnt been upgraded since what...the 50's? (level, not era, 
) probably pointless, but I like its graphic too.
Thanks