[Champion Concept] Serpa, Spark from the Magic Furnace
Before war, before man, before yordle, before Void, before the stars in the heavens, existed a furnace which bore all things. In the erupting fires of creation, a spark became lost in the chaos, eons have passed and the heat from the spark was drawn to the magics of Runeterra.
There she crashed onto the highest peak of Mount Targon, she seeks to assemble the fragments of the once powerful stellar beings, in hopes of using their powers to rekindle the furnace and become whole once more.
"I feel so small, but with their fire I shall become whole once more."
http://orig05.deviantart.net/f608/f/2013/047/8/9/flame_sprite_by_tarorae-d5v81rv.jpg
Melee Fighter/Tank
Passive - Fuel the Fires: Whenever Serpa is hit by an attack or ability, her ad or ap increases, respective of the amount and type of damage she was dealt, true damage increases both. Serpa also has an aura that deals increased magic damage to all near by enemies, the more damage she takes, up to a cap. Her size also increases, up to a cap, based on the amount of damage she has taken.
Q - Explosive Vortex: Serpa releases a small spark in front of her, dealing X plus X% her ap in magic damage to all enemies directly in front of her and blinking to the other side of an enemy champion hit and knocking them away from Serpa's new position, dealing X plus X% her ad in physical damage to the champion knocked back.
W - Enveloping Flame: On the first cast, Serpa implodes, pulling in all enemies around her and damages them for X plus X% her ap in magic damage On the second cast, or after 5 seconds, Serpa explodes, releasing another aoe, knocking away and damaging all enemies around her for X plus X% her ad in physical damage.
E - Kindling for the Furnace - Passive: As any near by minion or monster dies Serpa take a spark of their life force, fueling her own, granting her a shield that builds with each enemy that dies, up to X% her max health.
Take their Spark - Active: Serpa fires a tether in a direction, the first enemy champion hit is slowly drained of their health for a over a few seconds, based on X% of Serpa's max health, and adding it to Serpa's shield. If she kills the enemy champion while tethered to them, she temporarily gains a shield equal to their max health, in addition to however much she has collected from this ability's passive.
While tethered, Serpa's Q will automatically hit the tethered enemy champion.
R - Building Inferno: Once activated, Serpa begins to gain bonus movement speed. Once she reaches maximum speed, her next basic attack causes her to become untargetable as she becomes a projectile and bounces from enemy to enemy, dealing X plus X% her ad and ap in mixed damage and dealing less and less damage to each subsequent enemy, also reducing her projectile's speed, until she runs out of power, unless she kills an enemy unit, then her damage and speed is replenished for an additional bounce.
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Skin Concept: Program Serpa: She would look like liquid metal, like the T-1000 meets some Grey Goo.