Something is wrong with the fire challenge monster. The skill says that it heals 10 a turn, but it was healing 30+ a turn making it impossible to beat.
I'm wondering when you would use Map Expertise for Magic/Rare/Etc...Nullification. Is that to make the map easier, or can you do something like Nullify "Magic, Rare, and Empowered" monsters so there's a higher likelihood of getting "Nemesis" monsters?