A mimic Champion

I don't know that anyone will see this, but.. What if a character had the ability to mimic other champions. Ability ideas

Q: mimic allies appearance (enimies won't know which is real champion) within limited range of ally.

W: mimic incoming enemy attack w/reduced damage. Could also sheild you to take reduced damage.

E: mimic enemy or ally champ and use their attacks (Q,W,&E only) with time limit

R: hit an enemy with a mimic feature (within specific range) causing them to make same movements as you (i.e. force them to run tward you or away from you)

The key/ult choices may need to be jumbled around and abilities will definatly need more structure. But I'd love to see a character like this. Throw some ideas in the comments!