Noxian & Demacian champion concept
The lore idea here is relatively simple, Advay was born to a Noxian mage who married and ran way with a Demacian warrior. During the invasion of Ionia his parents were slain and he was taken in by the Noxian mages who recognized his mother who was a powerful sorceress among their ranks. After he lived with the cruelty of the Noxian military for too long he decided he would fight back against them by joining the opposing side and learning of his Demacian heritage. After spending some time in the Demacian military he left when he realized their over-bearing self-righteousness that reflected the same brutal ideals of the Noxians, just more subtly.
For general playstyle I wanted him to be a hybrid tank AP mixture, I've tried having him scale with damage in Demacian and AP in Noxian but the itemization for such a build would just be too clunky and not work well given that there are very few items that give damage and AP. The numbers are just place-holders for now but I tried to give them a reasonable shot. His weapon is a Horseman's pick which looks like this but with a gemstone at the bottom for Noxian form. https://s-media-cache-ak0.pinimg.com/564x/47/94/68/4794686aa9603d74a695af7a031c6489.jpg
Advay- the war-torn warrior
Passive: War-torn, Advays conflicting loyalties cause him to pick sides, every time a spell connects to an enemy champion he gain a stack. At 15/13/10 he may choose between Noxian or Demacian loyalty, changing his skillset and abilities. After gaining maximum loyalty Advay gains 20% damage reduction after his next connecting spell for 2 second. Noxian: better range with lower attack speed, deal more in the mystic arts of his mother. Overpowering and subjugating his enemies. Demacian: Melee with higher mobility and attack speed, utilizing strength inherited from his father with burning justice. Higher physical damage and defense.
QN: Will-o-wisp: The war-torns next three auto-attacks are empowered by fire spirits to burn opponents for 40/60/80/100/120 (+ 20% AP) DoT every 2 seconds and revealing them over 6 second. Landing all 3 instances on a single target instantly burns for maximum value. Stacks last 10 seconds CD: 8s (activates after all charges are used) Note: only 1 instance will count as a stack towards his loyalty.
QD: JUSTICE SHINE!: Active: reveals an area within 1200 units and alerts allies of enemy champions. (cd 80) Passive: every 3rd auto-attack against large monsters and Champions grants Advay a decaying 100+ (20/30/40/50/60% AP) shield over 4 seconds (CD: 4 after duration)
WN: Cauterize: Using Noxian fire magic Advay’s skillshot burns the wounds, sapping away slows to heal himself for 80+ 30/35/40/45/50%AP and damaging the target by 20 + 4/4.75/5.50/6.25/7% of missing HP. CD: 7
WD: AND STAY DOWN: Deals a sweeping attack that Physical damages for 100/130/160/190/220 + (35% AP) then delivers a second attack in a line which refreshes slow duration on enemies hit with half damage (CD: 10 s)
EN: Intimidate: Advays imposing presence is projected in the area, building to a 40% slow over 6 seconds, then applying Fear to those caught inside for 1 second. Note: Only gives loyalty if an enemy is feared. CD: 20
ED: Dauntless: Dashes forward a short distance, then leaps to a target in a 425 radius, prioritizing the closest enemy champion or large monster, slowing it by 25% and dealing 125/150/175/200/225 physical damage CD: 12
R: Roaring soul: Advay releases a battle-cry gaining 30/40/50% Tenacity and being able to change freely between his loyalties for 10/12/14 seconds CD: 90/70/50