I do not like to be vampire. But if you want to pvp it seems its essential. I realy do not understand why there is no-debuff giving spammable spell that makes the user untargetable.
One can reply about weakness to fire that it also gives -so weakness against dragonknights. But %50 more damage to certain element to get vamp passives and immunity of %90 to skills ( spammable untargatable ) with still op ulti?
Good question does give good solutions. Can you spam cast it with no debuff and fight unless a ulti used on you = yes. So players need to spend their ulties to just be able to complete with you? sadly yes. Can ulties be spammed? - mostly no. Can you give another solutions to this system of equation? with efford yes. Does spamming one specific ability and farming ap does cost any efford or good play? -no... Is there any reson to be not a vampire?.....
If you give a certain skill line limited-immunity non-ulti(spammable) skill please add some debuff - like increased damage taken and/or consume hp on use. Its easy to make the game balanced just ask the right questions.......
You can ask much much better questions then I just typed and results will be the same - pvp means player vs player so it depends on the decisions against another players decisions. Do not let the game be simply depend on the decision of vamp.
In big zergs it does not realy matter ofcourse as its mostly aoe that is being used, yet the same conculusion holds where the questions need to be altered and asked different basis; where I will not repeat here. Observe that its asked to be balanced so that decision of being vamp or not to be equivalent...