Many Many Classes.

The warrior class lacks fatal or debilitating weaknesses and as such are very difficult to kill. They can't hold back numerous enemies but numerous enemies can't kill them either. They are most capable in the thick of battle or on the frontlines. They can walk through the battlefield unhindered. Their lack of weakness makes them the best soldiers to field in every situation. 

They are usually used as Frontline soldiers to test the waters in uncertain situations because Warriors focus on defense, resistance, and immunity. They do this to achieve self-supremacy. They can ignore the suppression of the realm on Origin gods and the suppression of the divine plane.

A perfect warrior is a warrior that any Supreme Beast with the special class will be unable to defeat much less kill. As for scouts, they focus on perception, mobility, stealth, and damage outburst for assainations.