Because many professions simply don't have enough skill points! That's why you need to equip the skill, but even if you equip the yellow skill, we find that the skill points are still not enough, if so I think it is sad! It won't affect anything! On the contrary, it will make your equipment more valuable! Because of these several this prop, his function is random! For the current version of the game, since you can increase the attributes and upgrades of equipment, then why not increase the skills, of course, he is capped!