Abjure?

Hey all - Mark, thanks for getting the new spells up. I am most excited about summoning Zangief to aid our struggles - but in two levels, I can bring in ANOTHER FIST OF ODIN. Oh My God. Excuse me for a moment, because I just wet myself with pleasure.

Ummm . . . you know, because I spilled my beer. Yeah.

Anyway. I remember what most of the 4th level spells do, except 'abjure'. Anyone?