Siren is here! And she likes to counter - when below 40%HP - every attack (except summons) with a 9999 curaja :3 HP: 830.000 Break resist: 80% Weak to dark (150%), absorb holy and resistant to every other elements. Status resist: everything except poison! Get your Quistis and Edgar ready! Here some tips to fight her (it's copied and pasted from reddit xD) Spoiler Siren has a mixed offense, you'll need both protectga and shellga for this fight. In addition, while her primary element is holy, she'll also use lightning and ice attacks as well. I hope your dark-oriented SB's are physical-based, because magic characters will have a very tough time here due to Savage Luncatic Voice (which is both a scripted attack as well as regularly reoccurring). It is a strong AoE magic holy attack with a 36% chance to silence. You 100% absolutely need to wear holy resist here because Siren's ST/3T holy attacks hit for insane amounts - if you really want a mage party, make sure they have innate silence resist in their dives. Note that Savage Embrace is an extremely strong (578%) AoE physical holy attack with a 123% chance to Sap. Once Siren drops below 40% HP, she will counter all attacks (except summon) with Counter Curaja, which will heal her for 9999. SB's and strong multi-hit abilities are a must for the last leg of the battle. Note that Siren is very fast, and all of her abilities have a decreased cast time (1.2s), and enters her enrage mode at 30 turns. Siren will always do nothing her first turn and use haste on her 2nd turn, if you can slot in a dispel, it may buy you a few more seconds before she enters enrage mode.