Styx ( boss ) Styx is a boss in " Final Fantasy Dimensions " . She is encountered three times in the game . First Battle . She is encountered the first time inside the Underwater Temple . She likes to cast Water on a single member or the entire party . She can also casts Toad or Mini , which may slow down the team . Discharge can inflict Stun on all members . Undine Cry is her best shot . It will inflict about 500 damage to the entire party , plus Sap . Strategy . Remember to heal regularly , or at least have Eduardo cast Aiding Anthem . It will hardly hit all of them at the same time but still can be quite dangerous . She is weak against Lightning , so Judgment Bolt or Thundara works well . Also , equip the Warrior with a Coral Sword and attack her with Strike . It will do a lot of damage . If the Player has a Dragoon , use Boost Jump while equipped with Coral Sword to deal 1000 + - 1400 + damage Second Battle . This battle occurs when the party tries to leave the Underwater Temple . It is a scripted battle . Strategy . This battle by default cannot be won . After a certain amount of time , whether party members attack Styx or not , Styx will cast Lorelei ' s Tears , which reduces all characters ' HP to below 10 . Afterwards , she ' ll get hit by a cannonball and the battle ends . Third Battle . This battle occurs inside Castle Burtgang , when the Warriors of Light enter the throne room . In this battle , Styx will use various attack which can harm the party badly . She will attack with Water , Waterga , Undine Cry and Lorelei ' s Tears . Waterga can deal about 1500 damage to a front - row member or about half of it to all members . Water will deal less than that and Undine Cry will damage all allies just as Waterga but it will inflict Sap . When her HP get lows , she will cast Lorelei ' s Tears , which basically means casting Waterga continuously on every character . Beside damaging your party , she is capable of casting some other spells . She may dual - cast Mini and Toad . She can also counter Lightning - based spells with Discharge to Stun all allies , but it shouldn ' t affect all members . She can also use Temptation or Siren Song to cause Confuse or Silence to all members , but they usually miss . She can also can Haste on herself when her HP is getting low . Strategy . First , make sure the Unicorn is acquired before entering this fight . Players may want to cast Shell on every character at the start of the battle to reduce Styx damage as her attacks are all magic - based . She can damage you a lot with her spells but Shell and Unicorn ' s healing will neutralize that . Also . Unicorn will blow Temptation ' s effect away . Mini and Toad is not a real threat here as they can be removed easily . This fight doesn ' t have to be rushed anyway . Siren Song can cause Silence and it can hit your main healer and must be gotten rid of it immediately . When her HP gets lower , she will cast Haste and Lorelei ' s Tears . Lorelei ' s Tears can do heavy damage , so the party should be kept in good shape . This fight won ' t be very hard , especially when Vata was encountered a while ago . Fourth Battle . While Styx is faster and more powerful , she used the same strategies from the previous battle . Waterga , Undine Cry and Tidal Wave can inflict major water damage to the party . Siren Song , Temptation and even Undine Cry can inflict several statuses to the party such as Confuse , Toad , Mini , Sap ( status ) . Lorelei ' s Tears can damage twice as much as Undine Cry . Strategy . This fight is pretty straight forward and it will be faster if the party is highly leveled . A White Mage , Seer or anyone with Esunage should be enough to deal with negative statuses . Keep the party HP above average while attacking her with powerful spells or F - abilities .