In the PvE mode: Auto Battle is still used in this mode. There must be at least 01 Monster to join PvE battle. Each PvE battle will consume a certain amount of energy. If you win, the energy will be consumed or else it will be conserved. There is a limited daily amount of energy, which, however, can be increased in many different ways. Those who win level 3, 6 or 10 of each zone in PvE mode will have to fight against big Bosses. Winning these Bosses brings you special rewards.