OMG! Thank you for sharing this strategy guide!
I've been stumped for not being able to finish master difficulty. The boss is way too hard without proper strategy and squad composition. Also thought to use sdd team for 1st squad after finding out starting the boss battle with archers team was a bad idea, but I haven't thought out the finer point like the 2 turns delay at the start of boss battle XD
Thank you for pointing it out in your guide.
Managed to finish it now (although still relying a little too much on items because I forgot about the delay and the importance of resilience skill there)
BTW, does the resilience from raid armor set activate separately from resilience rune, or do they share the limitation (as in if whichever of them activate, both is rendered unusable anymore during that same wave)?