Energy

Energy is a resource used to fuel abilities of certain Champions in place of mana. It is represented by a yellow bar instead of blue. The base maximum for energy is set to 200 with 10 energy regenerated every second. Unlike mana, the maximum energy and energy regeneration rate of a champion cannot be increased with items or masteries but can be enhanced with certain runes. The Ancient Golem buff will increase the Energy regeneration by the same percentage as Mana. Currently only the three Ninja Champions employ this energy mechanic (Akali, Kennen and Shen).