I noticed an exploit in one battle where Lae'zel was getting concentrated attacks. I cast Sanctuary and the boss waited out their turn instead of switching targets. I'll keep an eye out to see if this repeats.

I'm playing honour mode conservatively, prioritizing defences and retreat options. The game is kind of playing out kind of normally so far. Yes, the bosses are tougher, but their new tricks are manageable, if you can prepare.