Ability power

Ability power (AP) is a champion statistic that increases the effectiveness of most abilities. It stacks additively.

Effects that benefit from ability power receive a bonus based on a certain percentage of a champion's current ability power. For example, if a spell deals 100 damage and a champion has 50 ability power, the spell's damage will increase by 10. In-game, spell descriptions do not display the percentage, but do display the resulting bonus; the previous example would display as 100 (+10).

Champion Abilities
Note: Only the ability power buffs of these abilities are shown here. To read more information on each of these abilities, follow the links to their champions' pages.
 * adds 50% of his total magic resistance to his bonus ability power.
 * grants him ability power for 25 seconds.
 * grants himself ability power, and grants nearby allies half of that amount.
 * passively generates souls for him to collect, with each soul collected permanently granting ability power.
 * permanently grants him 1 ability power when the ability kills a unit and passively grants him ability power when he kills a champion from any damage source.
 * grants him 1 ability power per 40 bonus health.

Masteries

 * increases your champion's ability power by per champion level ( at level 18).
 * increases your champion's ability power by 6.
 * increases your champion's ability power by % per rank.
 * causes your champion's basic attacks to deal bonus magic damage equal to 5% of your Ability Power.

Neutral buffs

 * The buff grants up to +40 ability power (among other bonuses) for 3 minutes.

Runes

 * and runes increase ability power.

Trivia

 * The ability with the largest AP ratio is, with a maximum AP ratio of counting initial cast and the target taking damage from all 45 ticks of tibbers aura damage.
 * The second and third bounces of scale exponentially, however the low base ratio means it will not beat other spells at normal levels of AP.
 * ,, , , , , , , and have no abilities or innate effects that scale with ability power.
 * Aside from and, who may obtain theoretically infinite ability power due to the passive effects of  and  respectively, and , whose  interacts with a metagame mechanic not intended to be seen in gameplay (bonus magic resistance when disconnected), the highest attainable ability power by a playable champion is  on  thanks to her passive, . To reach this amount, she must:
 * Have maximum ranks in the, , , and masteries.
 * Be level 18 while having a full rune page of runes.
 * Possess the buff and five stacks of the.
 * Have 500 stacks of passive.
 * Have a fully stacked, one , and four.
 * Have consumed an.
 * Be affected by aura.


 * This combination will result in having  ability power.


 * Relevant mathematics:


 * ability power(166undefined40180undefined(4120)4035)(undefinedundefinedundefinedundefined)


 * The highest attainable ability power by a playable champion at level 1 (without disconnecting) is on  thanks to his passive, . To reach this amount, he must:
 * Have maximum ranks in the, , ,  and  masteries.
 * Have a full rune page of runes.
 * Have bought a.
 * Use his.
 * Be under the effect of with five enemies nearby.
 * Be under the effects of and.


 * This combination will result in having  ability power.


 * Relevant mathematics:


 * bonus magic resist(520undefined25)undefined
 * magic resist((530151010)undefined)undefined
 * ability power(undefined6undefined20undefined)undefined

Ability power Fähigkeitsstärke Poder de habilidad Puissance Moc umiejętności 法术强度