It depends on how far you practice and how your equipment is. If you take the four weapons of Abyss, there should be 1 turn before BOSS summons the pillar. First of all, you should see that the staff will add 25% STR magic (both Jin and Yanilas have their own fighting skills to be strengthened). It is more convenient to cheer directly with Estelle (but it is not recommended to bring these weapons in the final BOSS battle. It is best to bring full screen or large entity S skills (agate is the most convenient). This kind of person takes the tiger pounce STR+200, the principle of killing. As soon as the pillar was put, the nun and Kevin added CP to him and continued to clean it. Pay attention to stand next to Kevin in the first round and don't run around (Kevin's skill is set to shield). From time to time, BOSS will ask two mobs to kill easily and let the melee fighters fight, because it is absolutely annoying for BOSS to fight with gas, and the legal system will concentrate on treating and outputting BOSS.
Then there is the most critical moment. Kevin must have kept his skills. When his health drops to about 1/3, he will suppress a big move of 25,000, and at the same time reduce physical defense and magic defense. Others will try their best to export BOSS before BOSS puts skills, put Kevin's shell on top before BOSS puts skills, and the rest is the abuse of BOSS.
My style of play is violent, but it is also very easy to use and fast. Otherwise, it would be too much trouble to point the pillars one by one with a little magic. If you don't clear the small pillars quickly, you will have to have a special top shell. )