Banshee Support "Manca" Champion Concept

Champ idea: support- Banshee

Passive: can't auto attack anything besides allies. Auto attacks heal for 10 +( 1% of Ad)

Q: 565 range projectile skillshot scaling off ad. If you land 3 within a (5 sec, refreshed every hit) time slot then it heals you and restores 50 mana. 4 sec cooldown. 15 mana

W: uses her scythe to move all neutral and enemy units 90° counter clockwise in a radius. Does flat damage with small Ad ratio. Then slows. 20 sec cooldown. 90 mana

E: Banshee scream slows all nearby enemies and speeds up allies for a short time. 14 sec cooldown. 80 Mana

R: calls upon an enemy, removing their Magic resist and Armor Based on her own for 3 seconds. 90 sec cooldown. 100 mana