Fix Savage Raiding (party finder mode)

[KageTokage]

I'm still in a mad rush to clear E8S before I effectively get locked out of it after all of the good players clear and leave me stuck with the Light Rampant meme parties.

Giving people an incentive to help others get first clears beyond the Phantasmagoria bonus would only be a good thing, IMO, though preferably in the form of simply making it more rewarding somehow.