So this is probably trivial or minor but still a thing. Dragons that fly up or burrow. Have 2 issues 1) loot table resets upon respawn meaning that if you get last hit right after unburrow, you get entire loot table if no one else hit. It hasn't been an issue but we have observed it more than once with 2 parties. And second issue is full ago reset. If you want to keep that, fine. But full reset is annoying on bosses like lind who just turn and cleave everyone based on first attack.
If you want that as part of the fight, fine. Just annoying since his cleave in particular is nuts.