New Champion Idea

Okay so me and a friend were thinking up some ideas for a new champion and would like to know what you guys think!

Original Shadow User: Q: Shadow Hand; Marks multiple enemies if nearby (Vlad's E) hitting all surrounding targets dealing moderate physical damage and marking them, can be recast within 2 seconds to pull in the affected targets. W: Release Shadow; Every third auto attack, a shadow spawns behind the target dealing bonus damage based off current health. E: Shadow Soe; A spike comes out of their shadow that is cast upon the ground of the marked targets of Shadow Hand. Allows either one target to be selected if none were effected by Shadow Hand and slows the target briefly for 99% for .5 seconds. If multiple targets are hit by shadow hand all enemies take moderate physical damage without a slow. R: Final Shadow; Bursts shadows in all directions grabbing and rooting any nearby enemy champion dealing heavy damage. If mark of the shadow hand is on any target that target is stunned for 1.5 seconds instead. Using shadow Sew after Final Shadow will cause mutliple spikes to hit affected enemy champions and slowing them briefly for 50%. Using Shadow hand after Final Shadow with bring all enemy champions affected by Final shadow into the center of the cast radius. Final shadow leaves its own mark that is consumed by either Shadow Hand or Shadow sew upon activation.