This is to add experience to other cores. You should have a skill core of your own profession, then go to the core mage, right-click the skill core, right-click to strengthen it, and click the experience core opened below to add experience to the skill core. When strengthening the core, you can choose this experience to add more. In addition to spiders, you can also keep the Mitra core added to Salem. It is best to give spider cores, and other cores can be opened. Spider cores need to be beaten with will. When strengthening the core, you can choose this experience to add more to strengthen the core. It is suggested to leave it to the magic spider in the mirror, double-click the jade to get experience cohesion, find the core owner, open the core interface, find the magic spider, right-click to strengthen it, and remain unchanged. Only this experience cohesion, choose to eat. It's done. At present, the poor can only upgrade by eating the core of experience.