They should leave Marvell alone. By the way, why she's wearing knickers?
Let see what will be in following levels, so far good. Did it with Marksmen, Elves, Cyclop, Efreets, Centaures,,Swordsmen, Wolf Riders and Rashka. She's double strike vulnerable, Curse also works so far..
Fire Lord is having too low attack to do anything, basically it just sits here, with its extra defense.