Spell vamp

Spell vamp is a defensive stat which converts a percentage of the damage from either champion abilities or item actives into health. It only works for active champion abilities that do not modify basic attacks or apply on-hit effects (including true damage abilities).

The heal is calculated from damage after being reduced by enemy defense, such as magic resistance, armor or champion damage reduction.

Items
The maximum spell vamp from items only is 48% spell vamp.



Champion abilities
Note: ''Only the effect regarding the spell vamp of these abilities is shown. For full description and detail visit each champion page''
 * grants 6% spell vamp, increasing by an additional 1% for every gained thereafter.
 * grants % spell vamp for 4 seconds.
 * permanently grants % spell vamp.
 * grants spell vamp for 6 seconds.

Masteries

 * grants % spelll vamp.

Ability Drain
Note: ''These abilities will heal the champion by a percentage of the damage dealt from their ability. These act similar to how spell vamp works, but unlike it, they have no penalty for being Area of Effect abilities.''
 * heals for of the damage dealt.
 * heals for 20% of all damage dealt to enemies, from any source, within the ability's radius, capping at against minions or monsters.
 * heals for 10% (25% against champions) of the damage dealt.
 * heals for 100% of the damage dealt.
 * heals for 25% (75% against champions) of the damage dealt.
 * heals for 100% of the damage dealt.
 * heals for 80% of the damage dealt.
 * heals for 15% of the damage dealt.
 * heals for 40% of the damage dealt.

Calculations
Spell vamp is multiplied by total spell damage to determine the amount of health restored. Area of effect spells only heal one-third the normal amount.
 * Example: Dealing 300 single-target damage with 10% spell vamp will heal for 30. Dealing 300 area of effect damage with 10% spell vamp will heal for 10 for each enemy affected.

Trivia
[Last updated 13/8/2015 on patch 5.15] must:
 * One of the biggest amount of spell vamp any champion can obtain is %, being a level 18.
 * Have all the and spell vamp runes and masteries:
 * 9 Scaling Marks of Attack Damage
 * 9 Scaling Seals of Attack Damage
 * 9 Scaling Glyphs of Attack Damage
 * 3 Quintessences of Spell Vamp
 * 3 points in
 * 1 point in
 * 3 points in
 * 3 points in
 * Have the best and spell vamp items:
 * Only fully stacked
 * One
 * Be at
 * Two 80– item:
 * ,, , or
 * One
 * One
 * Have consumed an.
 * Possess the buff.
 * Possess 5 stacks of the buff
 * Be close to a casting.
 * Be under the effect of cast by a  with the maximum amount of ability power.


 * grants her 1% spell vamp per . Upon conversion, along with, , and passives,  will reach % spell vamp.


 * Relevant mathematics:


 * AP
 * AD(())
 * spell vamp()%