Tristana + Lulu is pretty much cancer
Seriously what the fuck is that combo. I just had a game where Tris took the bot lane tower at 5 fucking minutes. She then came top with Lulu and nobody could damage her, because of these god damn Lulu Shields and Tristana's E. Even in teamfights, noone could kill her since she had Bloodthirster and god damn Lulu. If you would look at my match history you will see that the only supports I had to play with/against were mostly Lulu and Janna. Thank god you're already "nerfing" Janna, but for the love of God please nerf Lulu too, it's just not fun. The worst part is, we were 8 kills ahead, but couldn't push shit due to Statikk Shiv Tris
?
That's more than likely the real issue here.