[Champion Concept] Zoey, the Seal of the Dark Age

This is Zoey, one of three characters that are bound to each other in a special way. (Special Event: http://community.na.leagueoflegends.com/en/c/fancreations/4jc1XvTV-custom-event-the-return-of-the-dark-age)

"No light nor darkness, just a grey color - eyes which deceives, senses which alters, memories which fades away.
Zoey, both human but also bearer of ruin, lives as long as she can remember - many decades, maybe even thousands of years. Moments of blurring retrospects of her never-ending life occurs, only to then be remembered of the course of her destiny.

It is said that once, long time ago, there was a event called 'Dark Age'. It was a time of calamity and heresy, corruption and deception, when a lost artefact that has been found, suddenly activated and affected everyone in Runeterra.
Though it was a very strong artefact, it could only reach those who were truly evil inside, thus only few were awakened by the artefact. The Arcanum Majoris fought a never-ending battle between good and evil, but despite of those with good intentions, they were powerless against.

A child was chosen to carry the artefact of the Dark Age - by binding the artefact inside of the child, the Dark Age was sealed away. First and foremost, a child was taken to guarantee that the Dark Age would not return as soon as possible.
Due to one of the side effects of bearing the artefact, the child received almighty powers which could not control it. Accidents after accidents, the child almost murdered innocent peoples, thus the child left the Arcanum Majoris.

This child was 'Zoey', who after a very long time, became slowly older due to one of the side effects as the bearer of the seal. Zoey lived underground, she hid herself from the public, only because she was afraid to harm innocent peoples.
Even though she was hidden beneath the civilization for decades, she was frequently discovered by those who wanted to break the seal and claim the new Dark Age for themselves - with no success, Zoeys powers were too great.

From time to time, Zoeys memories fades away, as if she ousts it to become stronger. Zoey recently decided to participate in the Institute of War, because both her health and the seal was in danger - she felt a huge presence was claiming her life.
By joining in the fields of justice, she would bait the one longing for her life and the seal of the Dark Age."

"Forty-two times people tried to kill me, everyone failed. I don't need forty-three times to know that my next target will fall, too" - Zoey, the Seal of the Dark Age

Appearance:
Zoey does look like a 26-years old girl with black hair. She's sparesly clothed, her arms and parts of her back are not covered. Zoey has almost everywhere on her body tattoos. Those tattoos are white/blue and does shine, like in this picture: http://mancomb-seepwood.deviantart.com/art/Glowing-tattoo-254386689
The tattoos change their color to scarlet red whenever Zoey activates her Ultimate.

Zoeys appearance is a combination of "Jack" from Mass Effect, a Shadowrun Character and a picture I've found on DeviantArt.
http://amywilkins.deviantart.com/art/The-Three-Fates-Atropos-391566084
http://www.deviantart.com/art/Shadowrun-Vendetta-Violent-Commission-419183373
http://amywilkins.deviantart.com/art/Jack-Mass-Effect-402052066

Role:
Zoey is supposed to offer great powers for the cost of her own life. She is best played on mid or on bot as Support.
Zoey is categorized as Primary: Mage / Secondary: Support

Stats:
Health 375 (+75) Attack damage 50 (+3) Health regen. 4.85 (+1.2) Attack speed 0.625 (+2.11%) Armor 11 (+3) Magic res. 30 (+0) Range 750(Ranged) Mov. speed 325

Abilities:

Zoey's abilities are only restricted by cooldowns. Instead, she uses her own health for skill costs and has a secondary resource called "Magicka Infinita". Magicka Infinita works like a Power-Gauge bar, which increases the abilities strength the higher the Magicka Infinita bar is. Magicka Infinita builds by 10% for each damaged enemy unit and will fade away for 10% each second after 2.5 seconds of not using any abilities.

Passive - "Arcanum Diabolika":
Upon ability use, 350 range around Zoey and 350 range around the target affected by the ability, all friendly units and Zoey are healed by 35/40/45/50/55/60/65/70/75/80/85/90/95/100/105/110/115/140 (+1 for each Magicka Infinita)(+10% AP) (level 1-18).

However, heals can't stack with each other (example: Ability use on ally nearby Zoey - both Zoey and the ally send forth healing waves, but both heals won't count - only one heal at the same time)

Q (Skillshot) - "Ruination":
Zoey shortly fuses her both hands together, she then shoots a fast beam projectile of white particles up to 650 range that grinds through the earth. The beam is narrow and if it hits a enemy unit, it deals 65/85/99/110/125 (+60% AP)(+1 for each 1% current Magicka Infinita) magical damage. This ability can be used a second time without any cost, but will go through the enemy unit that has been already hit by.
(Explanation: Do you remember in late game or mid game, when tanks/supports stay in front of their team mates, to take all skillshot and won't allow that the weaker mates gets heavily damaged and get easier to nuke down? THIS is THE ability to shoot through the tank and hit important targets!)

Health Cost: 7% of current Health
Cooldown: 17.5/15.5/14/12/10.5

*** W (Skillshot) - "Hallow Effect":***
Zoey uses her hands and paints a full circle of white illuminating magic around her on her current position. After 0.5 seconds, wherever she stays, a light beam goes to the opposite direction where Zoey stays. The light beam is about 650 range long and 350 range width. It goes through enemy units and damages about 100/115/135/150/165/185/200/215/235/250/265/285/300/315/335/350/375/400(based on champion level) (+10/20/30/40/50% AP based on skill level) magical damage (50% damage reduction against monsters and minions). The damage is split equally if multiple targets are hit. This ability can be used while walking and won't need to stay still to execute. The range is increased by 1 point for each 1% Magicka Infinita.
(Animation: Even though it's a "light beam", it looks more like a white shadow that becomes longer)
(Explanation: The damage is huge, true, but it is intentionally made to be increased by champion level rather than skill level. With this, the damage is fairly balanced alongway the game and will only grant huge power upon late game, where Zoey is needed.)

*Health Cost: 10% current Health
Cooldown: 22/19.5/17.5/15.5/13.5

E (Lock-On) - "Unholy Sanctuary":
Zoey selects a enemy or ally unit within 450 range.
On ally: For the next 2.5 seconds, the next basic attack made against the ally unit, will stun the attacker for 0.5/1/1.5 (levels 1/3/5)
On enemy: For the next 2.5 seconds, the next basic attack made by a ally champion or Zoey, will stun the target for 0.5/1/1.5 (levels 1/3/5) and damages the target by 50/75/85/99/110 (+20% AP)(+1 for each 1% Magicka Infinita) magical damage.

Health Cost: 5% max Health
Cooldown: 16/15/14/13/12

R (AoE) - "Sealbreak":
Zoey opens the seal of the Dark Age for 4 seconds. Within 1000 range around Zoey, she damages up to 4/5/6 enemy units (Champions prioritized) continuously each second for about 40/80/120 (+25% AP) magic damage. After 4 seconds, every ally Champion 350 range around Zoey is healed by 20%/35%/50% of the damage done previously. This can be recast to break up earlier and heal earlier.
(Animation: Every enemy unit affected, will lose parts of their darkened soul - those souls flies as a projectil to Zoey and gathers in herself. Upon recast or after 4 seconds, the gathered souls implode and a strong wave occurs around her, healing everyone affected.)

Health Cost: None
Cooldown: 110/100/90

Special Quotes:
If Annie is near, Zoey says: "You've got a pretty broken family", "We have more in common than meets the eye"
If Gregori is near, Zoey says: "Your intentions are unknown.. so my feelings about you", "Are.. you..?", "Impressive skills.. very familiar".
If Alicia is near, Zoey says: "Aren't you Amoline?", "Who are you?"

Special Event:

Whenever Alicia and Gregori or Gregori and Zoey appears on both enemy teams, the first kill against the enemy Gregori, Alicia or Zoey, will unlock a specific new item that can be bought for 1000 gold and will be consumed instantly.

(Alicia) Witch's Proud - Alicia's basic attacks now deals 20% of her total AP.
(Gregori) Necromancer's Staff - Gregori's passive now also heals him afterwards for 2.5 seconds for about 30% of the damage done against Monsters, Minions and Champions.
(Zoey) Arcane Majoris' Gloves - Zoey's ability power is increased by 1 for each 1% current Magicka Infinita.