Myztero collects ailments even without receiving it while under Aeron’s buf.
Is it a bug ?
It works as intended, I guess. Aeron as well as Grazul block ailments, but Myztero still receives it somehow. On the other hand, when Myztero is paired with a hero that applies dodge (Margeret, C-Kadilen), he doesn’t receive the incoming ailment. I was confused by this at first.
Just put a blocker in the team with Myztero and you are fine