In the world of Lineage 2 Olympiad, we have some classes that have a very big winning chance upon some others because of some specific skills, and this we call anticlasses. It's not that it is impossible to kill an anticlass, but your win rate is a lot more lower even if you are high skilled.

Basically, the anticlasses are harder to win because they have a strong characteristic that affects directly some of the weakest points from the other class, and every single class has at least two or more anticlasses.

Let's take the Dominator for example, their only weak point is the high MP cost for using his skills, and when his MP ends he gets very weakened, so a class that receives low damage like an Eva's Templar is very hard for them to win because his MP might end. The Hierophants and Eva's Saint are hard for them too because they can drain all of his MP and beat them easily after that.

But on the other way around, some classes with weak defenses have almost no chance against them, like Duelists and Grand Khavataris, because Dominators give them a big damage and have a Physical Defense almost equal to the tankers with Soul Guard.

I will not list the anticlasses from all the 31 classes because this was a concept created by the players, and I don't want you to think that just because someone is your anticlass it's impossible for you to win him, plus it changes a little bit according to the server configuration.