We've all heard the complaints about Titan and how the mechanics are too unforgiving (one mistake and everyone is out). I don't want this to be a discussion on Titan himself, but in trying to think of solutions, I keep hitting a brick wall. Either you make attacks one-shot and force people to dodge them -- this becomes a binary situation where you either get hit and die or you dodge everything and the fight becomes trivial --, or you make it so that people can survive and they just heal through it (e.g. ADS Enrage). The alternative seems to be to add some gimmick. Go stand here or go do that before you wipe (e.g. Qarn, AV). While they're nice breaks from playing dodgeball, they feel equally unengaging. A mix of the two like Acheron seems about right, except you're always doing one or the other during each phase. Something like Allagan Rot also seems interesting (to me), but clearly, most people don't like it since they prefer enrage.

So what sort of unique mechanics can we add that don't feel like they require constant dodging, yet aren't so gimmicky that they become more of a nuisance than an actual mechanic?

And I guess, by extension, how do you define a fun dungeon?