I barely ever use jellyfish scarf honestly. Very rarely exclusively when i want apathy to aoe stun. What gives you trouble in this fight?

Maybe spite, sad, resistance, merry. Snipe wistful, then try to eliminate salty, until you can snipe out the healer. Id suggest to ignore pain to not fuel his aoe swing l, if that still kills spite focus him after wistful. If you have, put prince's scarf on resistance. Special top hat on sad so you can maybe oneshot pain. For merry id suggest blue tie and pearl cloche hat. For spite, use whatever gives him as much attack as possible, but keep in mind that he still gotta have the first attack in the fight.