Beating The Louisian Mage Captain (Again) On Hard In Metaphor: ReFantazio (Full PC Version)

Weeks after playing the demo I had forgotten how this fight works and made some oversights and bad decisions. I thought I was dead on this attempt but managed to pull it out. Possibly worth mentioning, my MC still hasn't spent stat points at this point (I'm waiting until I get a feel for the enemies' typical resistances, and it's also a fun challenge).
Also on my channel is a video of me beating this fight in the Prologue Demo at lower level and with very little mana (and none of the DLC healing items).