Sakagamí

70% win rate with Riven in ranked, got to gold with her.

I also play

TOP: Irelia, Jarvan IV and Jayce

JUNGLE: Lee Sin, Shen and Skarner

MID: Ahri, Morgana and Akali

SUPPORT: Blitzcrank, Sona and Leona

AD: Vayne, Ezreal and Graves