Fighting Vayne Last Game

My support was Nautilus and Vayne had a Blitzcrank support. She got her items, we were tied in lane pretty much with her having 2 deaths and myself having two deaths. Anyway fast forward to our team fight. I'm in the backline as Xayah attempting to focus Vayne but she's in her own back line and invisible, we have no vision on her and her tanks are on top of us. If you're going to have shit stealth champions like Vayne PLEASE give us maybe a potion or something so that in team fights adc's can actually see what the fuck they're fighting. In the final team fight we had, (40 minutes into the game; with all the drakes, a baron, and one of their mid inhibs down) we wipe out their entire team clean and fair, and their team wipes us out clean and fair, but wait, what's this? The sole survivor Vayne with FACE OF THE MOUNTAIN fucking ends the game. Not to mention the lack of counter-play against Diana recently. I honestly don't care if anyone thinks I'm bitching or just a bad player who can't deal with their laner, I guess you'd have to talk to the rest of the league community who feels just as oppressed when they're fighting a Vayne or Diana.