[Champion Concept] Kara'Xai, The Beauty of the Void (daughter of Kassadin)
The picture is of The Shadow Queen from "Paper Mario: The Thousand-Year Door" game.
~~ ~~ Basic info
She was send out of the void to assist Malzahar and protect him from Kassadin. Because her mind was twisted and she forgot about her time in Valoran, so she followed Malzahar mindlessly at first. However, she was gifted with special void power called "Music Box of Gol'Dahal" allowing her to use her voice to change anything and everything, even herself. So, instead of helping to summon more void creatures to Runeterra, she now works on transforming every living person into void-touched beings.
Friends: 
Enemies: 
Neutral: 
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COMBAT
Attack range: 400 (but treated as melee attacks)
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Passive: Void Mimic: every time you hit an enemy with your basic attack they will suffer additional 30/35/40/45/50/55 (+20% of attack damage) physical damage after 1 sec.
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Shadow Twister [q] Deal 50/70/90/110/130 (+40% of attack damage) physical damage to all nearby enemies instantly and then continue to deal 20/30/40/50/60 (+15% of attack damage) physical damage to nearby enemies every sec for 4 sec. In addition, while this ability last your attack speed will be increased by 30%. Cooldown: 8 sec Mana cost: 60/65/70/75/80 Range: 380 Casting time: 0,3 sec
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Void Song [w] Deal 50/100/150/200/250 (+80% of ability power) physical damage to nearby enemies and confuse them for 1 sec causing them to fight each other (or be stunned if only one enemy is affected). Cooldown: 20 sec Mana cost: 45/55/65/75/85 Range: 380 Casting time: 0,15 sec
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Void Grip [e] Launch yourself to your target (friendly or hostile). If you use this ability on hostile target, then root that target in place for 0,6/ 0,7/ 0,8/ 0,9/ 1 sec. Number of uses: 1/1/2/2/3 Recharge time of one use: 12/11/10/9/8 sec Mana cost: 30 Range: 585
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Music Box of Gol'Dahal [r] Passive: killing an enemy minion or a neutral monster will permanently increase your max mana by 2/3/4.
Active: sing a void sound for 4 sec. While singing you are invulnerable and untargetable (can reactivate this ability to end it sooner). Nearby allies does 30/40/50 (+25% of ability power) bonus magic damage with their direct damage dealing abilities. Nearby enemies suffers 50/70/90 (+40% of their attack damage) physical damage every sec increasing by 10% per sec they stay close to you. Cooldown: 140/130/120 sec Mana cost: 80/90/100 to activate and 30/35/40 per sec (ability is canceled if you run out of mana) Range: 400
(A note: animation on friendly champions should cover them in purple energy like they are being transformed into void-touched beings) (A second note: animation on enemies should look like they are hurting themselves) (A third note: i know it is similar to Zhonya, but this ability drains mana and does so much more than just making you invulnerable)
~~ ~~ Build examples:
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Sup
