Battle Chasers: Nightwar

Story related, can not be missed.

In the Crimson Garden, your goal is to take the walk of Verus and find three statues in the dungeon to learn of his path and obtain certain items that unlock to portal to the boss. After you find all three, return to the start of the stage in order, go through the portal there and find the Farseer. He has two main attacks that he uses in the battle. The first does a moderate to higher amount of damage to one character, while the other does very massive damage to the entire party. The only plus is he reacts slowly in the fight and by this point you should be leveled up enough that you should be able to take care of him before things get to a critical point. Once you finish him off and complete the dungeon, the trophy will pop.