What does "anti-special" mean when commentators in LOL professional competitions often say it?

....So it is very important to learn English well. Counter means to target. For example, the more common one recently is the wine barrel, which is a hero that can counter and rush in. The traditional rush heroes, such as robbery and murloc, are The kind is also a counter ball girl, a hero with weak self-protection such as Clockwork. In terms of lineup play style, the opponent chooses a developmental top laner. When the mid laner is in the mid lane, usually the two-man lane will go up or in the middle to suppress, that is, in terms of play style Counter, such as mid laner Death Song, top laner Dog Head, etc. When heroes with weak pressure resistance and strong late game, usually choose to switch to a two-man lane to counter