IMO, Tristana needs some love.
Hi, I like Tristana. I wanted to main her. I tried, and while playing her my opinion is that she need some buffs. According to op.gg, she has 1.56% play rate and 45.61% win rate. This probably means she has some issues. I had 3 matches with enemy poppy while playing Tristana. Every poppy player did same thing: When I used W, animation was starting and poppy players was simply cancelling it with E. When I was close to her, she could even cancel it with W. So my proposition is to make her W faster and not easy to cancel. Additionally, I think riot should add something to make players attack when putting E or make more damage for no stacking E. I was watching many Tristana players and worse players was just putting E and it made them just less mana. It's just my proposition, I never was balancing champion so it's not my cup of tea.