mana shrines can be rebattled for mana, that's what that is

damn.. only shrines i guess? ok.. thanks for the answer.. how do i delete this post?

Yep, Mana Shrines only. They don't actually require scrolls to rebattle either, just are able to fight each team once.

I'm unsure how to do so as a regular forum member, but it's no problem leaving it up - someone may search for the same issue in Google or another search engine in the future so this thread may be helpful. :)