I think this would make a great feature in FFXIV. Similar to Mythic+ system in WoW... I am not saying copy directly from that game but take the basic ideas and features and implement it in a unique way. Right now in FFXIV the dungeons are very easy. Basically in most of the dungeons I see tanks mass pulling the entire mobs until they face a wall and then dps AOE them down. This type of playstyle is very boring and not fun at all.
