There might be an issue with losing XP with each death. The total amount of XP is fixed, so if you lose too much, you're gimping yourself more and more.
That might be a fun difficulty challenge (people have finished the game with 1 hp, or no higher than level 1) but that seems like a major challenge in excess of honor mode, not in between honor and tactician.
I may have a solution: I just installed the brutal difficulty mod. It's harder than tactician (and Honor mode's normal fights, which use tactician) but does not have Honor mode's legendary actions.
I was sad because I wanted brutal + legendary actions, but it might be to your liking.
It has some fun upgrades to enemy AI. For example, when they down one of your party members, they don't keep at it until dead, which is something a dev does to be irritating, but they then attack the rest of the party. This is the correct tactical move as once everyone is downed, not dead, you lose.
Last edited by Shadowbart; 1 hour ago.