Mana

Mana is a statistic that is used by most champions to cast abilities. Mana can be restored by mana regeneration, abilities, items, runes, and buffs.

Mana is represented in-game by the blue bar above the champion. Due to size constraints, current mana can only be seen at the third tab of the scoreboard. Current mana is reduced by abilities that have explicit mana costs.

Mana was designed as to limit ability casts, forcing players to strategize their ability use. The resource itself is designed to eventually inhibit a champion from casting any further spells. This occurs once their mana pool has been depleted to the point of not being able to afford to pay the mana costs of abilities, becoming unable to cast them again until they have sufficient mana.

Every champion starts with a certain amount of mana, called base mana. This increases by a small amount each time the champion levels up.

Mana also stacks additively, with each bonus point directly affecting it.