Interesting one I noticed today in Ranked, and then confirmed by going through the Ninjas option and searching for Ninjas who create Stun (a.k.a., Immobile).

Pain - Ningendo doesn't display the information, but he's been causing Immobile in any units that he chases Repulse into Knockdown with. I vaguely remember seeing that on his information previously, thinking how strong an ability that is, but now it's no longer present, despite the ability still happening.

Can you confirm if this is an error and his text needs to be updated, or if he's not supposed to create Immobile at all, and it's a bug?