I usually take Esuna if I know its needed or if its my first time in something. If I know I don't need it for sure, I'll swap it for Rescue, Cleric Stance or Surecast depending on the fight. Can't count the number of healers I've seen go into Byakko normal expecting it to not need Esuna only to find out that its probably better to take it halfway through the fight, because people love standing in that lightning.







