ummm...
Nirhael, your set-up for Hard Monday daily looks weird and overcomplicated to me, tbh.
I always thought of Monday H to be the easiest hard daily.
It only requires one-two CCd witches (in my case it's Cloris and Bellinda, but any two will do frankly), Katie+Aria, or Katie+ any CCd Heavy, two CCd healers, and one mage (or another witch).
You just put two witches to the top right, and block both passages' exits points with KAie+Aria (Heavy), place mage (another witch) at the left exit point and drop of ur healers so they heal "blocking" points.
Extremely simple and efficient and does NOT require all that strategic planning, princesses, etc. that you recommend Nirhael.
EDIT: Ultimately I haven't yet seen ANY use for princesses so far. I mean it has always been more efficient to place combos of HA/witches, or just pure witches instead. For instance, the last map of Maribel event for me was much simpler with witch/mage/ha combos than with princesses.
Or say Phalanx 3 - sure you can do it with princesses, but it's so much easier to just drop of ur three witches and plain forget about it. You don't even need healer