It is possible to defeat Black Abyss at level 33 for both Darc and Kharg. A long range character (Maru recommended) is required. Before you start the battle, equip all your character's weapons with at least two Diamond Coating or something else that increases your attack greatly Equip most of your characters with at least two Diamond Coatings is recommended. You will also need at least two Stone Bags for each character, and extra Gales that make you speed up in the party items for backup. Allow your character to learn a long and wide range moves. Make sure to sell all your Elixir and other items that effect enemies items, and buy lot of Strongest Herd and a dozen Revival Medicines. Give the six characters at least three Greatest and make sure to have one healer. Store that character with more Strongest Herd and three Revival Medicines. However, do not throw items that temporary raise ATT away, as they will be needed. When you are ready to battle, select Maru with you and Demelia, or a party with Darc, Kharg, Paulette, Ganz, Volk and Maru. Black Abyss has three moves: summon Brain Cell to attack, absorb HP from nearby, and a beam that deals lot of damage across the room (but not the edge of the room). This attack will regain his black mist and raise its defense. Black Abyss has great defense. You must kill Brain Cell to weaken it. If you notice the black mist around him slowly lighten, use the following strategy. If you have master Black Abyss moves, then you are ready. Separate your six characters, three to each side, and stay at the edge of the room. Killeach Brain Cell. Do not use too many moves on them, but on Black Abyss. Note: If you are out of SP for moves, re-equip that character's accessories to Gale to raisethat character's speed (especially when Maru is out of SP). Raise Maru's ATT with items. Once you notice the mist surrounding Black Abyss has disappeared, do not go near Black Abyss. You will find that the Black Abyss has become inactive. Use this opportunity to slowly kill Black Abyss with your best long range attack (Maru).