User blog:Anonymous Summoner/karna masta mildran final phase

Someone can explain to me the last phase of Karna Masta in final map, Mildran?

For the first time, and for everytime i reached on the final phase, the boss recovered all the HP and wipe my squade with a Final Attack.

So, Im read to have to use UBB for 3 turns for survive the Ultimate attack. thats is correct? acctualy i do more than 3 and the boss continues to wipe my squad. I tried to Finish with UBB, guarding, attacking... Anyone can tell me what i have done wrong? what i have to do? this match takes more than 30min for take down by an indefensable attack?

Thanks for the help.