Sacrificial Style Support (Champion Concept)

Here is my amateur idea for a support that I would love to see but know I will never be made.

Passive - Protect the Innocent - Every X seconds you intercept the next targeted hostile spell cast on a nearby ally. Hostile spells cast on allies reduce this cooldown by 1 second.

Q - Free the Righteous - Passive: X Tenacity. Stores one charge after being struck by cc. Max 3 charges. Active: Use a charge to free an ally from one form of CC.

W - Life Line - (Name is so original. Where do I get these amazing ideas?) Links self to an Ally champion. X% of all damage done to linked Ally is dealt to you instead. (If ally is hit with 100 damage he/she only takes 75 while you take 25) While linked your ally gets a small Movement speed buff.

E - Generic Healing Spell Name - Heals self for X. If Life Line is active, heals Ally for 50%.

R - Ultimate Sacrifice - Marks an Ally. After a brief delay you swap places with marked ally. After the swap you receive bonus Armor and Magic Resist and swapped ally receives a Movement Speed boost. Range on ult is roughly that of Ult and channel duration is that of Ult.

I want to see a support that is something other than a CC machine or a second AP carry. I want to see a support whose entire purpose is protecting his team.