Wardens mail will get you a few milliseconds by slowing her attacks, Nasus's wither might, but that's not the main issue
The champion has a 54.5% winrate when players complete 51-100 games of the champion and stays at roughly that % beyond those games
And that's rare, when you see 200+games played the winrate of a champion usually drops because it means that those players are taking the champion into every matchup. Players that have a wider champion pool (that understand counters and how to play them) will have higher winrates but lower games played on individual champions than onetricks of those champions who often counterpick themselves.
Riven players pick Riven into any matchup and still get 54.5% winrate just because they learned how to animation cancel
The champ is just disgusting, the counterplay is: to counterpick and pray you're not vs a one trick, to ban her or to dodge