Support Void Champ

Support Champion, void theme. Ranged Autos, Short Range/melee/model range on abilities. Utility style with AP scaling. Her kit would rely entirely on positioning herself and timing to protect her allies and weaken her enemies, and her abilities would require her passive being in place Enemy champions would have to be inside of her or in 300 range to be affected by her abilities. The idea is the void gate fog that we see in game is sentient. The abilities are all phase transition themed because I'm just not that creative, and I didn't add any numbers to the abilities (how much damage, how long) because I'm not good at balancing that sort of thing.
Just wondering if anyone else has had similar desires: a support champion that is from the void, a support champion that lowers shield power of enemy champs for that niche pick, a champion that rewards in solo queue risk to reward while still requiring a supportive play style to succeed.

[Shuriman Name] Veil of the Abyss

[Name] is as old as the void itself. Her being fills the plane, and when a void gate is open she pours through as a dark mist. She exists as a suffocating fog and serves as the required trial for entering the void. Those with a will to survive passing through her are rewarded with untold treasures and visions of the past, present and future. The void only calls those who need it the most.

Passive Ability: Transparency: Champions are able to pass through [Name]. Condensate: Allied champions are invigorated and healed for % of their max health when passing through [Name]. Vaporize: Enemy champions are suffocated and receive damage for a % of their missing health when they pass through [name].

Basic Ability [Q]: Bloating Deposition: [Name] solidifies herself in the lungs of her enemies, exhausting them and putting them to sleep for a short duration

Basic Ability [W]: Absorption: [Name] sheds a part of herself, placing an area around herself which lowers the shield strength of enemy champions, shielding her allies equivalent to reduction to enemy shields.

Basic Ability [E]: Ionizing Vision: [Name] invades a nearby brush, granting vision and marking any enemies discovered. Enemies who are marked recieve % true damage from the first basic attack from an allied champion of [Name].

Ultimate Ability [R]: Exothermic Response: [Name] roots herself and reaches out all around her with arms formed from fog. The arms tether to enemy champions in ‘medium range.’ Enemies caught by the arms are slowly pulled into [name.] Enemies who are close enough to be pulled into [name] are briefly feared.