Alistar new ultimate ability

Hello Riot! I have been thinking about a new ultimate ability for alistar.Alistar is a minotaur and according to greek mythology minotaur used to live in a maze.So im suggseting that alistar's new ult ability should create a big maze by clicking to an enemy that would trap alistar his opponent and whoever is in there.Of course there can be a way out but it will be hard like a real maze.Also dashes cant pass maze's wall and it should last about 4-7 seconds.I dont know if it should do dmg though.I think that ability is a good idea because it is something we have never seen in the game and it matches to alistar himself.I hope you take my suggestion into account.Thanks!