Ran Hydra twice. First time, cakewalk, one try, my first time, tank barely took any damage by circle-strafing the hydra. Second time was wipe after wipe after wipe, mainly due to the "Infirmity" debuff. The fight guide I read said it can be Esuna-d away, but I have personally tried to remove the debuff from myself and Esuna seems to have no effect.

Can the Infirmity debuff be avoided? Tanks didn't seem to know how and my only previous experience was an absolute cakewalk, so I was never told. Thank you.