Mid lane hyper mobility fighter/assassin champion - Yazari, the Light Mirror

Yazari

range: 150 mana user

Passive: Glint

Every spell that Yazari successfully hits an enemy, glint particles will attach to them, granting true vision for 2.5 seconds. Clicking on an enemy with glint particles will cause Yazari to materialize next to the target within 1 second. While materializing, Yazari can be damaged by an enemy champion, stopping the blink.

Q: Light Pistol

Every 15 seconds, gain a charge of light, which up to 3 can be stored.

Press Q and shoot at a target direction of 900 to unleash light missiles. The light missiles, deal magic damage to the first target hit, exploding if it does not hit anything, dealing slightly less AOE damage.

W: Mirror of Light

Target terrain and the mirror of light will reflect light onto terrain, reflecting to the next terrain opposite to it in a Zig Zag shape. The total range is 2000.

Re-cast W to rapidly travel through the light to the target location, clicking out at any time to get out early.

Getting out at the target location will unleash a burst of light dealing magic damage to all enemies in the radius.

E: Light Speed Kick

After a 0.5 second delay a kick of light will slash at the targeted direction of 600 range, knocking enemies into the ground and up for 0.5 seconds. Deals massive single target damage.

R: Gold Star

Release a massive ball of light at target direction after a 1 second channel. The ball travels 800 units, and blinds enemies it goes through for 1 second, dealing moderate magic damage.

If anyone has a better idea for the ultimate let me know :)