League refuses to give me an S rank...
I've been doing really well in my matches for a while now, and I find it almost impossible to get even an S-... In this Sivir game, I had most damage dealt, most creep score and gold, and highest KDA, yet I only got an A... This is really frustrating because I can never earn any hextech chests. My friend has been playing League and gets S- all the time even when he goes like 8/5/9 (not an exact reference, just an example.) What the heck am I doing wrong? Any tips?