Battle Chasers: Nightwar

Story related, can not be missed.

In Strongmont, your goal is to find two Lich somewhere in the dungeon area and destroy them in order to lower the force field around the boss at the beginning of the area. Once you find and finish them off, return to the beginning of the stage to find the boss, Bhargus. He only has one attack where he explodes dealing very heavy damage to your entire party and causes three normal enemies to appear that you must kill before he returns to repeat the process until he's dead. The main issue with this battle is the explosion part because depending on your health level, it will leave your entire party near dead and the normal enemies start attacking almost immediately not giving you a good chance to heal up before hand which can be an easy death to you. Keep fighting and when Bhargus dies and you complete the dungeon, the trophy will pop.