General reminder irrespective of thoughts from others. Dungeons are mandatory, casual content. If a savage/ultimate raider isn't bored out of their mind doing the dungeon, the dungeon is way, way too hard. People need to be able to make mistakes and survive, to practice mechanic styles and survive. And ideally, not be picked on as any individual attack unless that mechanic is laser-focused to pick on that role (E.G. a generally easy to do but melee-targeted attack like a melee-out aoe.) Anything else is literally and irrefutably bad dungeon design.