Burning-Eyed Shana's class was a rare advancement of warrior like Zhao Feng's Fengshui Master. It was not considered as a Hidden Class. It was not unique as others could pick up the advanced class. However, the advancement quest would be extremely hard.
Almost all rare advancement classes were strong and had a specific role. Zhao Feng's Fengshui Master for example, was focused solely on support. He could not heal and had very average attack power. In a small party, most would ignore him. Only large parties would benefit from him.
Archdemon Fighter had its own pros and cons. Among the warriors, this class was the only one that had a great range of attack. An Archdemon Fighter's weapon of choice would be a spear. Hence, it had a longer range compared to a hammer or a sword. However, by having a spear, close quarter combat would be extremely weak. When an enemy got too close to an Archdemon Fighter, they would be helpless like a Hunter.
