Abracadabra

Reach the 6th and highest Magic Circle. You have to commit to a mage guild - the Fire Mages (Old Camp side) or Water Mages (New Camp) - and work up the circles one at a time. Don't try this on a Swamp save: the Sect caps you at the 4th Circle, so Cult Loon kills it stone dead. Pairs with Overachiever.