Getting better at this. The key i found is to suit up your guys in the best crafted gear you can get. Able to do Foul Cascade in expert mode pretty easily except for Queen at end. Get her down to bout half health before my group succumbs to her and the adds. Think i need to add more AE heals but mana doesn't last long cause its a long fight. Changed my group to WAR pali/vk/war, 2 ROGUEs mm/bard/nb, CLERIC ward/sent/cab, MAGE cloro/pyro/storm.