What I find funny about so called "Delfmage" was noone really complained when clerics where 1v1ing everyone with little to no lose. But since it's a Bloodmage it's automatically only made op because it was alot harder to play before. Theres risk and reward in playing Bloodmage, think about it. If you focus the Bloodmage and take him out first then there is no major healing going on. Usually you'd have to focus a wizard or ninja but now it seems since Bloodmage can output damage and heals everyone is complaining it's op. Bloodmage is getting a bit nerfed on heals I think, even I'll admit it was a bit strong, but to keep complaining about it isn't going to do any good. As for risk Bloodmage has 3 self healing spells 1 that does damage, they also only have leather armor. So if a Bloodmage was to get 3 stacks for a BloodBoil then it would also want to get the mass of targets, it does do damage to everyone around it, but honestly in teamfights ppl aren't just grouped up mashing at each other. Also when it tries to run at ppl anyone can just kill them or silence or something.
tl;dr - Bloodmage is getting nerfed, everyone keeps complaining