>>538465706
boss gains stacking damage resist to the element it's getting hit by, make sure to dispel it before your big dick dps blow their load.
The majority of your damage is going to come from turns 6/7 when the boss has been def shredded and your crit dmg stacks are high. It's going to feel like you're tickling the boss until the very end where you chunk like a third of its hp on the last turn.
The way to build stacks is to get as many people hit by the red ground aoe as possible so they get the debuff that gives you crit dmg when cleansed. Boss uses it on turns 3/5/7.The crit dmg buff lasts 2 turns. This means you want to stagger your cleanses so there's always something to cleanse every turn otherwise the buff will fall off. Think of it as single target cleanse on turns 3/5 and global cleanse on 4/6/7.
The boss attacks the closest and furthest unit every turn that gives the target with a stacking dmg buff. If you're using 1 big dick carry dps then set up your formation so that every unit is equal tiles away from the boss. The boss will hit the support unit you borrowed twice, giving them the buff twice. Note that this means you have to borrow the v6 dps or will just have to opt for the dual dps setup.