A Noxian Support ( I am not committed to a name yet)

So i just thought of a cool idea for a Noxian support today. A support that gives a lot of useful buffs, but at a cost. I'm still working on the lore, but i was thinking something along the lines of a commander that inspires rage into his men to keep fighting with a kind of "pain is temperary, victory is forever" kind of thing. The abilities are not set in stone (especially the q) and i am open to suggestions. Feedback is welcome and appreciated :).

Passive: Abilities do not cost mana, instead costing health.

Q: Strength in Numbers Passive: Nearby Allies gain a movement speed buff based on the number of allies nearby. Active: Nearby allies do small leaps on basic attacks, but lose a solid health amount for every auto.

W: Passive: Nearby allies have a tenacity boost. Active: Pain is Temporary-Removes all cc effects from allies in an area around you, at the cost of a percentage of their current health if cc is removed. More percent for hard cc’s (ex: snares, stuns), half for soft cc’s (ex: slows, silences) Passive buff is lost while this is on cooldown.

E: Passive effect: Nearby allies have 2/4/6/8/10% lifesteal and spellvamp Active toggle: the passive is lost and allies gain a large damage buff at the cost of percent (current?) health per second.

R: CHARGE! You leap forward a moderate distance and slam down on a large area, creating a “battlefield”. All enemies hit take a small amount of damage, and have their movement speed reduced by 50% while in the battlefield. All allies have their movespeed increased while running towards you, and have their damage amplified while in the battlefield. All damage taken in the battlefield is increased by 10%/15%/20% -immune to cc while leaping. -Enemy and Ally damage taken increased