They appear and disappear without a trace, moving with an ethereal grace, capable of suddenly materializing in front of their enemies to launch attacks, and their damage output is high, making them natural assassins.
Of course, in addition to shield pets and assassin pets, there are also spell pets, archer pets, support pets, and various other classes.
Spell pets excel in casting spells, archer pets specialize in ranged attacks, and support pets provide significant boosts to their teammates during team battles.
In short, in the world of battle pets, most pets will develop into a certain profession based on their characteristics. A very few with high talent can possess the traits of two professions simultaneously.
For example, those with high HP and agility can choose to specialize in both Shield Pet and Assassin Pet. Of course, very few Battle pets can dual wield.