Boss Monsters usually exist as two kinds.
The first Kind is the 'Commander' type, who is usually surrounded by tons of minions and has a lot of influence over them.
It would be difficult facing this Boss Monster because not only would the challenger have to defeat it, they also have to focus their efforts on the mobs that naturally assist their leader.
As a result, Parties are necessary for fights like this—whether in a game, or in a world of Magic and Fantasy.
However…
… There exists the second type of Boss.
The Solo Boss!
In a way, this one can end up being even more troublesome than the first.
At least, the first Boss is guaranteed to be defeated with proper teamwork and well-coordinated actions.
Since it's a 'Commander' type, it's usually weak individually—though exceptions to this exist.
A Solo Boss, however, is an 'Assault' type.
