The reason Sejuani is terrible now is because of that awful 17 second CD nerf Riot recently gave her

Most people aren't going to max Q first so it's not like you can get the cooldown to lower anytime soon without items. This was an unreasonable nerf they gave her and it feels almost as awful as the self-imposed slow they gave to Rammus to make him miserable to play a year back. Please consider changing this to something more reasonable or get rid of LCS so I can just enjoy playing video games without Riot crippling some of my favorite game characters so that they can force pros into playing Lee Sin.