I wandered in here at level 54 and it took me 6 tries to win. Key is that anytime you do anything except white magic or a healing item, they all have a high rate of getting a free BP via Counter. A big burst can backfire on you. Start with a burst of 4 Godspeed Strikes with a sword on Selene so she doesn't heal. Hope you crit. If the first burst doesn't kill her, reset. Then apply reraise one at a time, take it slow and take out Roddy (spear), Dag (staff), and Lily one GSS at a time.

I beat them at level 70! Hope my experience below helps everyone having trouble! My team: - Freelancer (for stat boost ability) + Thief - Phantom + Salve Maker - Arcanist + Red Mage - Shieldmaster + Vanguard Shieldmaster has two shields (dual shields ability) & is here to always guard everyone at critical health. Phantom is for assuring 100% status effect success. Everyone can be paralysed except Lily so I just compound paralysis bombs with Salve Maker + DPS do Godspeed Strike or Electon.

My characters are between levels 74 and 78. I've used the Enrage Dag technic and made Lily attack with Earth (my party absorbed it). I used Rempart to counter Humanoid Slayer. My attackers had Surpassing Power. My Bravebearer/Thief (with Maximize HP from the Monk) used Dawn of Odyssey and Giga Gravity. My Phantom/Potion Master Paralyzed and inflicted Contagion (then Sick Twist). My White Mage/Oracle increased speed, use Element Supplement and healed. It needed a few tries to find this "technic"

Everyone but the Ranger can be Paralyzed, so bring your potion tossing Phantom and keep them mostly contained the entire battle. Lily will go completely nuts and spam Grand Barrage when her health gets low, so try to take her out in a big burst, then it's gravy. They were the first group of Tribulations I took down, RDM and WHM offer some very good tools to take down the rest.

>>1 You have to be a lot higher than level 77 to beat these guys. I'm at level 89 and they are still kicking my butt.

characters are at level 77, and all jobs are level 12 mastered, haven't even unlocked the caps for all classes yet, tried the recommended jobs and sub jobs, got caught in a stalemate where I could not kill Selene with the vanguard, and Dag breaking free from enrage lock with shield stun/bash making it to where my shieldmaster cant enrage him before he starts enraging my vanguard and arcanist.