Seriously ggg why is blood mage mana scaling 1-1 with health

The upside of this is that you get VERY VERY light heals. When my 1 ability costs 300 life and mana to cast and you only reward me with a 100 HP orb after killing 20 monsters. I have spell vamp and it still ends up killing me 99% of the time. Theres been times when i tap my ability lose half my hp then get 1 shot by one of the weakest boss projectiles.

Also why do the orbs last such a short time? Did the *you damage yourself for half your hp every cast* really need the extra draw back of only allowing the orb to last 2 seconds? I dont think so..

Now onto the 10% spell vamp... It sucks like actually i cant tell a difference. I sat through 2 hours of re running the ultimatum to unlock the ability only for it not to solve the innate issue i have of legit killing myself.

I havent seen a rare item in ages to help me with my life situation since they nuked the drop rates. This game is turning unplayable...