Like the title suggests, how long does the increased rez cost from reina's ability last? I found a ruling on ancur that stated it lasted "while the corp rezzed the ice". I had someone use that ruling as basis for their argument that they could break a just rezzed architect with aghora but that they would be unable to do the same on later runs? Commissar Feesh, I came seeking your guidance!

No, Reina's ability only affects the moment the ice is rezzed. Once you proceed to the Encounter step, the ice isn't being rezzed any more.

Grim beat me to it, but if you need a source for your opponents in future, check out #3

http://ancur.wikia.com/wiki/Fear_the_Masses_UFAQ

Thanks for the quick responses both and I appreciate the link for future silly opponents!