Concepts' Concept
Some of my old ideas Many of them have already being used by Riot :P
First one; Mage ? Assassin ? Mirror Character
Target an opponent and get his stats (15 sec?) ... or his ult (Likes Silas)
Change places with someone
Produces a link where stuff done to him also affects the other
Create a wall of itself Block champion
Double someone (Well likes Neeko)
Second; Mage ? Support? I will developp this one more Use a violin, alto, cello?...
Charge an attack Parade Heal Attrract people ~~before making a crescendo ~~ ?
As I say it's just a base