Enemy AI suddenly becomes more intelligent, finding ways to use its advantages and destroy yours. AI self-handicaps self to be beatable by legitimate means, and attempts to prevent cheesing of itself from happening. Most cheese spots nullified by triggering of mechanics (Templar hates your ledge, decides to summon all oracles simultaneously) or tactics (Omnigul's cheese spot is a valid spawn for cursed thralls and approachable by wizards).