This boss has a whooping HP175,000. Youll need all your luck here, as well as all the best equipment and skills you can get your hands on. Fortunately, I was able to defeat this guy during my first fight with it. First I will list down the things you should expect:

Sneeze This move will instantly destroy your GC, leaving your mages very vulnerable. No need to waste turn by recovering GC since this boss only needs one turn to destroy the GC you are trying to recover for several turns.

CUBE - This dreaded move deals percentage damage, leaving your party with an estimated 1% of their HP; it doesnt matter if the characters have full HP. In an instant, it will become critical

Shadowus Though damaging, this is entirely bearable, especially when you have the Angel Heart + All-Generatus combo active. This is the most frequent spell the boss will use, since your party has immunity to elemental attacks anyway.

All-Curse Can be observed as its primary counterattack move. Make sure that your mortal character has Angel Guard.

Divide Hopefully, it wont use this spell while it still has a lot of HP. If it did, hope that some of your characters absorbs the damage or activate Persistence.

At this point of the game, you should have a fair amount of Goddess Medicine in your inventory. Use this only in tight emergencies; this will serve as your life saver. Next, avoid using elemental attacks. Dont be fooled by thinking that this monster is weak against wind attacks; Windus will only deal 1 or no damage at all. Hunter Rings or Sniper Rings are great for dealing extra damage to the target.

Your chance of winning here is Divide and Reversa. Divide deals damage according the users current HP while Reversa deals damage based on the amount of HP the user lost. This monsters physical attacks are no joke either; each hit can take out anybody whose HP is below 8000. Persistence, Absorb Attack and Absorb Magic will play a great role here. Just remember to have at least one member dedicated to healing and recovery. Keep your partys HP to full as much as possible, and use recovery items if needed. This will be a long battle. Once the boss HP becomes critical, it will start casting Cube and Shadowus before your mages can cast their healing spells. Having Auto-HP recovery will help a lot in keeping your party afloat. Good luck!

Achievement will be unlocked after defeating this boss. You will also win the Quad-Element Seal for fulfilling the bonus objective. Now you can trade all your collected stars to get the prizes.