The Community of Disc Golfers and About All Things Disc Golf
From what I understand, they mix and match different molds to make their discs. I don't remember which I was looking at but I remember a disc being described as a mix between a Vulcan and a Wraith....or something like that.
The Hysteria is supposed to be a longer-distance version of the Roc...which sounds pretty cool.
They are Innova Europe and Millenium also says Innova discs on the bottom of most of their discs.
Discmania (Innova) does have some good discs though!
Innova provides manufacturing, shares molds, and provides some R&D for discamnia. They are also the distributor for each others products in their respective countries.