Why didn't I get an S/S+ in this game with Tristana?
I recently played a game as Tristana, which i have lv6 on and want s/s+ on her. I ended up with lv17,16/3/8,235CS,34:26min,16.3k gold,and 33k damage done to champions (the highest from both teams), i even warded and used red wards, helped with drags, pushed 2+ turrets, i only got S-. What the hell am i doing wrong ? What do I need to get S/S+ ?