I think Clemency is a little underrated. It really does save runs in DF. I've soloed my share of dungeon bosses and have prevented wipes in trials when the healers have died. Just recently, I basically soloed tiles in E9S with it.

Fight or Flight and Requiescat being on 60 second cooldowns means its QoL in dungeons is also very high.

Between that, Hallowed Ground, and how fast PLD can restore its own MP, it just takes the cake. It's sometimes frustrating how good it is.