How does Ability Power affect the damage of skills?

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I know that Ability Power increases the damage of the skill that your champion can use. However, I am not sure how it works. For example, does your skill's damage increase by 1 for every 1 point of Ability Power? If not, what is the rate of increasing damage per ability power? And does ability power affects skills that stuns or slows, or passive skills as well?



Best Answer

Scaling by stats

Not all skills are increased by ability power, some are increased by other values like Health, Attack Damage, Armor and / or Magic Resist.

Here are 2 examples for different scaling:

Galio's Runic skin (passive) Galio gains bonus ability power equal to 50% of his total magic resistance

Lux's Illumination (passive) Lux's damaging spells mark any enemies with light energy for 6 seconds. Her autoattacks or Final Spark.png Final Spark will consume the mark, dealing 10 + (8 × Lux's level) (+ 20% AP) magic damage to the target.

Scaling ratio

The ratio for the specific skill differs per skill. All the abilities are unique, and therefore have their own scaling.

For example, let's take Lux:

Passive: Illumination Lux's damaging spells mark any enemies with light energy for 6 seconds. Her autoattacks or Final Spark.png Final Spark will consume the mark, dealing 10 + (8 × Lux's level) (+ 20% AP) magic damage to the target.

Q: Illumination MAGIC DAMAGE: 60 / 110 / 160 / 210 / 260 (+ 70% AP) SECOND TARGET MAGIC DAMAGE: 30 / 55 / 80 / 105 / 130 (+ 35% AP)

W: Prismatic Barrier SHIELD STRENGTH: 80 / 105 / 130 / 155 / 180 (+ 35% AP)

E: Lucent Singularity SLOW: 20 / 24 / 28 / 32 / 36% MAGIC DAMAGE: 60 / 105 / 150 / 195 / 240 (+ 60% AP)

R: Final Spark MAGIC DAMAGE: 300 / 400 / 500 (+ 75% AP)

CC Scaling

Ability power (and other stats) may increase stuns, slows and passives, according on the skill. (however, this is not always the case and the scaling is, because the skills are unique, always different) For example:

Janna's Zephyr (W skill) PASSIVE: Janna is aided by a wind elemental, gaining movement speed and ignoring unit collision. MOVEMENT SPEED BONUS: 4 / 6 / 8 / 10 / 12% (+ 2% AP)

ACTIVE: Janna launches the elemental to deal magic damage and Slow icon slow an enemy's movement speed for 3 seconds (capped at 80% total). She loses the ability's passive benefits while it is on cooldown. MAGIC DAMAGE: 60 / 115 / 170 / 225 / 280 (+ 50% AP) SLOW: 24 / 28 / 32 / 36 / 40% (+ 6% AP)


Source: Lol Wikia

CC = Crowd Control (Slow, stun, fear)




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What does ability power do?

In League of Legends, Ability Power increases the effectiveness of most champion abilities. Any damage dealt, points healed or mana restored by abilities, ability power gives bonuses to these actions.

What does ability damage mean?

AD) is one of the player Stats. It is the damage dealt through any given item or weapon when using its ability. Weapons with Intelligence Scaling, or Int Scaling, means that your damage will scale per intelligence point.

Is ability power the same as magic damage?

Ability power is easier to understand than attack damage. It is nothing more than a stat that buffs the effectiveness of certain abilities based on a fixed percentage. On the other hand, Physical damage and magic damage are purely damage sources.

What does ability power do in wild rift?

In the league of legends Wild Rift, there are two types of damage one is AP and the other one is AD. Ap stands for ability power which is mainly used by mages in general. AD stands for attack damage which is used for champions that prefer using basic attacks in-game.



LoL Math - Vladimir: Health vs. Ability Power




More answers regarding how does Ability Power affect the damage of skills?

Answer 2

I would like to add some useful tip, but I have no reputations yet to comment.

Upon mouse-over on the specific skill, you may notice that there are some texts/values that are in green, it means that the skill damage(or damage reduction, or speed increase, or whatever) scales with AP. Other skills does not increase damage even if AP is increased.

Here are some other details for the color scheme:

  1. Green - scales with AP
  2. Orange - ... AD
  3. Red - ... HP
  4. Blue - ... Mana
  5. Yellow - ... Armor
  6. Magneta - ... Magic Resist

Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

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