Health regeneration

The actual healing effect from regeneration is applied every half-second, not every 5 seconds.

Champion abilities

 * regenerates of his maximum health each second.
 * causes him to regenerate of his max health over 12 seconds.
 * grants Fiora (level) health regeneration for 6 seconds each time she deals physical damage. Striking champions will cause this effect to stack up to 4 times.
 * allows him to regenerate of his maximum health per second after not taking damage for 9 seconds, minions won't reset the timer.
 * increases the health regeneration of nearby turrets and units by.
 * increases his health regeneration by  for the duration.
 * marks its target for a duration; champions who damage the marked target gain  health regeneration during 3 seconds.  heals instantly for 1/3 of the total health regenerated instead if he kills a target with.
 * increases his health regeneration by for 25 seconds.
 * grants him 6 health regeneration.
 * increases his healing and regeneration by . This buff lasts for 10 seconds and stacks up to 4 times.
 * can regenerate 30% of his maximum health over 6 seconds once every two minutes when his health drops below 30%.
 * let him to heal for 2% of his max health over 4 seconds after every used spell. Effect does not stack and spells only refresh the duration of his passive.

Masteries

 * increases health regeneration by for every 400 mana you have.
 * increases your champion's health regeneration by based on missing health.

Runes

 * Runes of and  increase health regeneration.

Neutral buffs

 * The buff grants health regeneration equal to 3% of your maximum health for 4 minutes.

List of champions' Health Regeneration
List of champion's Health Regeneration