from my point of view, Hemomancer is missing spells to puff it self. As an example you could lose health while it was activated, but all blood spells do more damage. No need to do that specific buff, but just some buffs that would match. Keep up the good work :)

Every class needs an escape/mobility skill of some sort. You could theme hemomancers around vlad's blood pool from league if its possible. Just an idea.