After taking out 3 more of the rift guards, Redi received a message, it’s from the collector.
Collector: Redi, I’ve figured out there is a special keystone hidden somewhere in this universe, all I know about it is that it’s important to closing the rift.
Redi: Well what do you want me to do about it?
Collector: I dunno, send your army to find it?
Redi: Alright, I’ll also ask the Banisher if he knows anything about it.