I posted this in the comments of another threat, but I doubt many people will read it so I'm making another thread for it.
here are some potential, unbiased changes that could be done to the Vampire skill line. keep in mind I both hunt Vampires, and I hunt as a Vampire, in pvp.
having said that, these ideas are from the vampire perspective, but none of these changes will create further imbalance in the game.
bat swarm- the ult is great, needs no work. except maybe with the new magelight.... invis would be nice here (creating the illusion that the vampire actually turned into a swarm of bats for 6s) however, some people's ult regen can get crazy high and having no counter to this wouldn't be fair (I guess...) also, what's with npc's still attacking you while invisible in bat swarm? seems kind of pointless choosing that morph tbh.
mist form- no roots and knowndown while in mist form is obvious, but stuns.. maybe? and being able to sprint would be nice too, but having that kind of speed in cyrodiil would be kind of ridiculous. however, I would definitely like to be able to move through npc units while in mist form. similar to how you can dodge roll through. that being said, this ability as it is still provides great mobility.
drain... this move is kind of underwhelming. using invigorating drain for the 15 ult regen definitely has a good utility, but the heal and damage isn't great. I think a good change would be to make one morph a 1s channel that leaves the target stunned for another 2s. for vampire builds otherwise lacking in CC this would be great for pvp, still have to channel for 1s but have a lingering stun to start your rotation. also, could consider changing one of these morphs to a complete rework of the ability...
one morph could simply give you a buff, giving your light/heavy attacks a 10% chance to heal you for 5% of your health. however, stacking this with leeching strikes, a vampire NB would have great sustain in pvp, besides taking a dawnbreaker to the face. whether or not stacking these 2 is a bad thing, is a matter of opinion.
I think the real change that needs to happen is additional abilities. this skill line definitely needs to be completed, and a little added incentive won't hurt.
I mean, between fire damage, health regen (broken passive btw) and dawnbreaker, there's plenty of drawbacks. keeping in mind the fact that none of these changes will be really game changing material. more like quality of life, or... quality of undeath.
I love the idea of having a vampire minion. I think a lot of people who don't roll sorc would love to have the ability of summoning a minion. Considering that fact that it's a vampire minion... it would be badass. this minion should be rootable and stunable, but maybe for 50% the duration. otherwise root spam would make this ability useless.
Now, the real thing to consider here would be the morphs.
original ability could summon like a skeleton that does melee light attacks for X damage.
one morph could summon a diseased zombie doing X damage and who's attacks cause minor defile for 6 seconds
other morph could summon a bloodfiend that does light attacks for X damage and heal the master vampire for 20% of damage caused.
these minions would have to be easily distinguishable in pvp, so you know right away if it's going to heal them or defile you. similar to how you know right away if you see a NB summon a ranged shade, how to approach the encounter.
Summoning a gargoyle would be awesome, but it would have to be an ult, and having 2 ults in the vampire line would be unfair.
having a Vampire stone skin ability would be great as well, granting major ward and major resolve. every class has access to this buff, but this would essentially give Vampires an aesthetic alternative. I love how the unmorphed sword and shield reflect ability looked, made you look impenetrable. something similar to this? not glowing or rippling magic, just stone skin. awesome.
as far as dawnbreaker goes, yeah... it hurts. but it's supposed to, it's an ultimate specifically for killing undead. however, it's a conal ability and if you're fast enough you can get out of the way.
as far as camo hunter goes.... this should definitely be looked at. NB with camo hunter can ambush a vamp for basically your whole health. if you're not dead yet they either just execute or SA then execute. if you're super resilient then incapacitating strike, SA, execute. Either way, you're dead and there's nothing you can do about it.
In my opinion dawnbreaker is fine but camo hunter shouldn't hit so hard in pvp. unless you're running some major defensive abilities, really really good at pvp, or rolling in a zerg, you're basically food.
here's another one most Vampire players feel strongly about: illusion potions
simply an alchemy crafted potion (ingredients: water, guts?) that grants the illusion of humanity for 30 mins.
lots of people get sick of how the vampires look. I know I do sometimes. make them NOT work in cyro, so it's fair.
another solution would be a disguise item, an amulet that grants the same effect. backpack bind on pickup, and destroyed when you get rid of vampirism. also dosen't work in cyro.
hell, you could make it an ability. I wouldn't waste a slot for it when I'm actually doing stuff, but just farming or crafting? sure.