Vladimir The Crimson Reaper [Relaunch Idea]

This is related to Mage Update, with my own ideas for Vlad.

He'll stay a hemomancer, and BE a literal blood mage, not a vampire.

So here would be my idea for his new kit structural.

Passive: Pact of Blood Each time Vladimir recover health, some of the health are stored into a spherical floating behind him to be a fuel his abilities. (Think Shalltear Bloodfallen from Overlord anime/light novel) Blood Sphere The source of power for Vladimir, each time Vladimir absorb health, Blood Sphere takes 30% of the health absorbed as point into it supplying up to maximum of 1,000. 20% of the Blood Sphere may be expelled to fuel an ability with Sacrifice. If Blood Sphere reach its maximum supply and are not being expelled for usage, it will periodically decays.

Q: Transfusion Vladimir rips life energies from a target dealing damages absorbing partial damages as health, and resupply his Blood Sphere.

W: Tap Life Vladimir peers into nearby targets' life energies spotting for vulnerabilities and deals additional damages to them for a duration absorbing the additional damage as health.

E: Corrosive Blood Vladimir consume part of his health to send infected injection into nearby enemy units. Dealing damages and reduce their recovery from all source.

R: Sacrifice Vladimir consumes 20% of his Blood Sphere supply to fuel or enable the usage of his ultimate ability. Q: Nearby units on the initial target has their life stolen as well. W: Larger radius of affection area. E: After duration ends, deals true damage to affected units. Ultimate Ability: Blood Tide Vladimir melt into a massive pool becoming invulnerable/untargetable (Fizz E) for a duration turning into a tsunami and deals damages to enemies on the affected area. Q,W,E may be used during this state.

Thoughts?