"Yin" is a custom champion in the League of Legends and one of the students in Piltover Academy. Yin uses a Hex-hammer for fight and his Alpha Ability is Repeater. In which his former self's the past actions is repeated by his image. His Hex-Hammer does create shock in the ground as it smashes to the ground, he also a Hex-Totemic Shocker that when striked down and buried to the ground it creates a shock that immobilizes units.
Unknowingly Yin came from the town of Zaun. A delinquent student secretly causing problems in the Piltover Academy. His Repeater ability came from the Hammerstein clan bloods.