Energy is represented by a green lightning bolt. It is a pool that recharges over time, and is required for and expended by having battles with enemies on the map, Brawl Monsters, or random encounters. It can be restored by some items.
These are the times for 1 energy to be regained:
- Levels 1 to 49: 1 min 30 secs.
- Levels 50 to 99: 1 min 15 secs.
- Level 100+: 1 min.
Formula used to calculate energy is 95 + 5*N ; where N is hero's level.
Times goes faster during a anniversary time (30 seconds when Level 100+).