WillO'Wisp

 is an enemy fought in. On the Isle of the Damned, the flaming WillO'Wisps can be used to break doors open. Their Viper Manor counterparts can cast Brimstone, which hits all targets. Their normal, physical attacks have a chance to inflict the Status Effect, Burn.

Battle and Strategy
WillO'Wisps are always accompany by deadheds,deadbeat,or other WillO'Wisps to fight alongside of them.If the party kills 1 or 2 enemy alongside of then,he will cast magma burst that cause the party Confused status effect on them.So its better use high hit points on them so that they are defeated immidiately.