Here we will introduce our players the boss at level 80-90 in Atlantica. If you are interested, please have a look.

1) Samidare
That one is actually a boss for a side quest you can party against. He's just a powered up version of the Kagemusha and overall not that difficult.

2) Nobunaga Oda
While this one is strong. He attacks a column of targets and has a very powerful area skill. If your mercenaries don't have the level(atlantica online gold) 80 upgrade, its recommended you get it before facing him. A battle against Nobunaga is more like a test of endurance. He has a good amount of HP. Clearing the mobs first will make the fight easier, but Nobunaga himself is the most difficult part.

Here is a problem, a big gap between this dungeon and the next. One of the things you can do is the Inventor quest if you have a level(Atlantica powerleveling) 50 Princess or do the Cannoneer quest. The Cannoneer quest has mobs with very high attack but low HP. If you can deal with this then the quest is fairly easy. The Inventor quest has a nice place to farm in the last section of the Hidden Machine Shrine. Some of the enemies are immune to freeze here. There's also several side quests but either way you will need to end up grinding up to the next dungeon. The first main character only weapon also appears through the quests here, the Cursed Sword Muramasa.