I just realized Ignatz's and Raphael's paralogue has a stationary boss on a healing tile. Slap on a Knowledge Gem , park a dancer next to your character of choice, and wail away. Bonus points if you manage to preserve your battalion after the boss's weapon breaks. That means rotate your characters in and out. Also get the battalions that give you Impregnable Wall and cherish it. Make love to it. Take care of it, and it will take care of you. For example, Lorenz's paralogue throws a ton of enemy characters in your direction. Attack with you range and then use wall on them, as it makes them do 1 damage while recieving 1 damage.
On a side note, I forgot to recruit Ingrid and then do her paralogue. RIP Luin, I hardly ever knew you. I also threw away the movement +1 ring by mistake. I am greatly enjoying maddening mode, but that may be because I havent done the Ashe/Catherine paralogue and the Felix paralogue (Rodrigue...how many times do we have to teach you this lesson old man). Thank god for Mila's timewheel, Divine Pulse.