You're right
Zornar,
if you never were endlevel before this Patch, you have to reach it once. But in the case you were level 80 before the Patch came and you already had a Maze, you still have it before reaching level 85.
So if you dont have one, you can ask someone else to use his maze for it. If you dont know someone who has a maze, you can message me in-game.
(name: Poloo) If you are a League player on the Evolution Server of course.