Mashiro and Kage, the Shadow of Twilight
So this is a split champion concept, where you can be as one character or two characters, with huge micro managing with needing to control two characters at the same time. Short form of a lore is an ancient creature of old that became immortal by splitting themselves into two personalities, a girl of light which is Mashiro and a boy of shadow which is Kage. Since the creature split into two, they can only dwell where there is either a balance of lights and darks; so during twilight or in the shadows where both exist at the same time.
Basic Attack Range: 600 units when together; 400 units each when split Movement: 340 units per second
Shadow Ray (Passive): Whenever Mashiro and Kage enter brush or the enemy loses vision of them then their next basic attack deals 30(+5 per level)(+100%AD)(+40%AP) magic damage.
Shadow Ray can only trigger once every 3 seconds if it triggers from brush.
Twilight Blast (Q): Cooldown: 8/7/6/5/4/3 seconds; Cost: 45/50/55/60/65/70 Mana; Range: 950 units Fire a blast of dimmed light in the target direction to deal 70/85/100/115/130/145(+40%AP) magic damage and slow by 20/25/30/35/40/45% for 2 seconds to all enemies struck.
Damage can overlap when separated and the uncontrolled character mirrors its Twilight Blast based on the controlled character's.
Shining Darkness (W): Cooldown: 12/11/10/9/8/7 seconds; Cost: 80 Mana; Range: 800 units Passive: When separated Kage's basic attacks apply darkness on his targets for 3 seconds, Mashiro's basic attacks apply vision on her targets for 3 seconds.
Active: Create a tower of black light at the target location to deal 80/100/120/140/160/180(+50%AP) magic damage to enemies struck, enemies with darkness or vision applied to them are stunned for 1.75 seconds but take 30% less damage from Shining Darkness.
Damage can overlap when separated, if the other is out of range it casts its Shining Darkness at the maximum range.
Shadow Flare (E): Cooldown: 20 seconds; Cost: 100 Mana; Range: 1000 units / 400 units Send the shadow of a flare in the target direction to deal 90/120/150/180/210/240(+60%AP) magic damage to every enemy struck and create impassable terrain at the end that curves into the side of where the other character is located for the next 5 seconds, dashes and jumps cannot pass through this terrain.
Damage can overlap when separated and when combined the Shadow Flare sends impassable terrain on both sides at the end of the ability.
Swap, Separate, or Combine (R): Switch between Mashiro or Kage when they are separated to take full control of the one you swapped into.
Use the ALT key followed by this ability's skill key to either separate or combine Mashiro and Kage, combining brings the uncontrolled character to the controlled character.
Mashiro and Kage cannot be more than 1400 units from each other when separated, when combined their basic attacks and abilities gain 50% increased range and damage