Mordekaiser Ult - League Replay Glitch!

I think I've found yet another Mordekaiser ultimate glitch! It looks pretty cool to be honest. I believe it's specific to the League Replay part of the game, and seems to have a special interaction with Evelynn. The video also has some Evelynn URF Gameplay which is crazy, hope you enjoy the video!

Tell me what you think of the video, and the glitch. Have you noticed it before?