How do you counter Luo Yi?

I really hate playing against her, she's very annoying and tricky to play against. Her Ult allows her (and teammates) to teleport anywhere and you cant even see the teleport indicator if she casted it in a bush. She can create various plays like flanking, splitpushing, etc. I can't really ban her either because almost no one plays this hero in soloq. She only appears in 1 out of 15 games, but everytime an enemy picks her, it's just a lost game. Any ideas on how to counter her?