Things now are really getting harder and without personas with resistance to all elements you’re going to have a really hard time dealing with this boss. This boss has all the -dyne spells, it can absorb SP from you, nullify the Makarakarn spell and even buff itself up at times. This boss pattern is simple but potentially deadly: after receiving some damage, it will cast Quad Coverage which will boost a random element, quadrupling both damage inflicted and received. Defend until you find out the element he’s boosted and switch personas accordingly: attacks of the same element will do the best damage possible. When near death, the boss will control any of your character and cast Unshaken Justice quite often: use a persona that nulls physical attacks and keep healing and attacking as the situation requires.