Talisman can improve its own level through its particular Enhance. The character can enhance its own Talisman at any moment and any place as long as it is not fighting against others; Talisman level has to be matched with game character level.      Enhancing will consume the character's Energy, the higher the level is, the more the Energy which is consumed will be.       You can get Energy by killing the monsters or finishing the tasks.

As it showed in the following picture, the number in the column of "Character Energy" is the energy that the player accumulated by killing monsters, while the column of "Talisman Energy" shows the number of Energy that is needed to enhance the Talisman in the current level.

Open the interface of "Character Attribute", select the "Act" label and then the "Enhance Talisman" button, then you can enhance your Talisman. What you need do is to put your Talisman into the blank in the middle of the "Enhancing Talisman" interface.