Healing modifier

Healing modifier is a buff/debuff that alters the amount of healing dealt by a Hero, Ability or an effect or the healing or Health regeneration received by target, by a given percentage, permanently or for a given period of time.

Stacking
Healing dealt modifiers stack additively with themselves, and healing received modifiers stack additively with themselves. However, the collective healing dealt and received modifications stack multiplicatively with each other.

The final healing amount can be calculated using this formula:



Example
Stitches with "Patchwork Creation" talent (+15%) hit by enemy Ana's "Biotic Grenade" (-100%) will receive  healing for the next 2 seconds.

Anduin's "Evenhanded Blessings" (+10%) and 10% Spell Power together increase the healing dealt by his "Flash Heal" (270) by  to 324.

Anduin healing previous Stitches will result in total healing of

List of healing dealt modifiers

 * Spell Power buffs and debuffs affect all non-lifesteal healing dealt by the affected unit for the duration of the effect.

Increased healing dealt

 * Alarak's trait, "Sadism", increases the self-healing and damage of his Abilities against Heroes by 100%.
 * Alarak has multiple Talents that can increase of decrease his Sadism.


 * Alexstrasza's level 7 Talent, "Verdant Flourish", increases her self-healing from "Abundance" by 40% and Regeneration Globes by 100%.
 * Ana's Basic Ability, "Biotic Grenade", increases all healing dealt by Ana to allied Heroes hit by it by 25% for 4 seconds.
 * Ana's level 1 Talent, "Contact Healing", increases the healing dealt by "Biotic Grenade" by 30% for each allied and enemy Hero hit.
 * Ana's level 13 Talent, "Purifying Darts", increases the healing of "Healing Darts" by 20% when it removes a Root or Slow.
 * Ana's level 16 Talent, "Sharpshooter", increases the healing of "Healing Darts" by 5% up to 50%, when consecutively hitting an allied Hero with them.
 * Ana's level 16 Talent, "Concentrated Doses", increases the healing dealt by "Healing Darts" by 10% for each Dose active on enemy Heroes.
 * Ana's level 20 Talent, "Deadeye", increases the healing and damage dealt by "Eye of Horus" by 4% for every allied and enemy Hero hit until the end of the cast.
 * Anduin's level 1 Talent, "Evenhanded Blessings", increases the healing of "Flash Heal" by 10% when used on different ally than last time.
 * Anduin's level 13 Talent, "Push Forward", increases the healing of "Pursued by Grace" by 5% for 6 seconds when damaging an enemy, stacking up to 6 times.
 * Arthas's level 7 Talent, "Immortal Coil", increases the self-healing of "Death Coil" by 50% when used on Arthas.
 * Arthas's level 16 Talent, "Embrace Death", increases the self-healing and damage of "Death Coil" by up to 100% based on Arthas's missing Health.
 * Arthas's level 20 Talent, "Legion of Northrend", increases the healing of "Army of the Dead"'s "Sacrifice" by 50%.
 * Brightwing's level 13 Talent, "Safety Dust", increases the healing dealt by "Soothing Mist" and "Blink Heal" to targets affeted by "Pixie Dust by 75%.
 * Cho's level 1 Talent, "Consuming Fire", increases the healing of "Consuming Blaze" by 150% if it ignites a Hero.
 * Deckard's level 13 Talent, "Super Healing Potion", increases the healing of "Healing Potion" by 120% when it has stayed on the ground for at least 2 seconds.
 * Gul'dan's level 13 Talent, "Harvest Life", increases the self-healing of "Drain Life" by 75% when used against Heroes.
 * Kharazim's level 7 Talent, "Heavenly Zeal", increases the healing of "Breath of Heaven" by 50% to allied Heroes Kharazim has used "Radiant Dash" on within the last 3.5 seconds.
 * Kharazim's level 20 Talent, "Peaceful Repose", increases the healing of "Divine Palm" by 75%.
 * Lt. Morales's level 16 Talent, "First Responder", increases the healing of "Healing Beam" by 25% when she is above 60 Energy.
 * Lúcio's level 20 Talent, "House Party", increases the healing dealt by Lúcio by 8% for each allied Hero affected by "Crossfade".
 * Malfurion's level 16 Talent, "Ysera's Gift", increases the healing over time of "Regrowth" by 60% while Malfurion is above 75% of his maximum Health.
 * Malfurion's level 16 Talent, "Moonlit Harmony", increases the healing of "Moonfire" by 15% for each ally affected by "Regrowth".
 * Malfurion's level 20 Talent, "Serenity", increases the healing of "Tranquility" by 25% and an additional 10% for each ally affected by "Regrowth".
 * Stukov's level 4 Talent, "Vigorous Reuptake", increases the healing of "Bio-Kill Switch" by 30% when detonating 3 or more "Healing Pathogens".
 * Stukov's level 20 Talent, "Top Off", increases the healing of "Healing Pathogen" by 30% while its target is above 60% of their maximum Health.
 * Tyrande's level 4 Talent, "Everlasting Light", increases the healing of the second charge of "Light of Elune" by 80%, if it is cast on different target than the first.
 * Tyrande's level 20 Talent, "Eyes of the Huntress", increases the healing of "Shadowstalk" by 50%.
 * Uther's level 16 Talent, "Beacon of Light", increases the self-healing of "Holy Light" by 125% when targeting others, increased to 250% while below 50% of his maximum Health.
 * Uther's level 16 Talent, "Tyr's Deliverence", increases the healing and damage dealt by his next "Holy Radiance" by 10% and an additional 10% for every Basic Attack against enemy Heroes, stacking up to 7 times.
 * Varian's level 7 Talent, "Lionheart", increases "Lion's Fang"'s self-healing from Heroes by 75%.
 * Whitemane's level 1 Talent, "Pity the Frail", increases all healing from Whitemane by 25% to allies below 30% of their maximum Health.
 * Whitemane's level 4 Talent, "Martyrdom", increases the healing of "Desperate Plea" by 30% and an additional 10% for each active "Zeal".
 * Whitemane's level 20 Talent, "Scarlet Crusade", increases the healing of "Scarlet Aegis" by 50%.
 * Yrel's level 1 Talent, "Lionheart", increases "Vindication"'s self-healing by 45% when it hits 1 Hero and by 90% when it hits 2 or more.

Reduced healing dealt

 * Kharazim's level 16 Talent, "Echo of Heaven", reduces the healing of "Breath of Heaven" by 25%, but causes it to heal a second time 3 seconds later.
 * Stukov's level 16 Talent, "Universal Carrier", reduces the healing of "Healing Pathogen" by 40%, but causes it to spread continually through Stukov.

Increased healing received

 * Cho's level 1 Talent, "Calloused Hide", increases his healing received by 15% while below 60% maximum health.
 * Hogger's level 4 Talent, "Hogger's Joggers", increases his healing received by 10% while at or above 30 Rage, increased to 15% at or above 50 Rage.
 * Li Li's level 16 Talent, "Blessing of Yu'lon", adds an additional effect to her Cloud Serpent ability, granting the target 10% increased healing received.
 * Mei's level 16 Talent, "Acclimation", increases her healing received by 1% for 8 seconds after slowing or stunning an enemy hero, stacking up to 20%.
 * Stitches' level 1 Talent, "Patchwork Creation", permanently increases his healing received by 15%.
 * Varian' level 20 Talent, "Glory to the Alliance", increases the healing received by allied Heroes affected by his Banners by 50%.

Reduced healing received

 * Ana's Basic Ability, "Biotic Grenade", reduces the amount of healing received by enemies hit by 100% for 2 seconds.
 * Her level 7 Talent, "Anti-Healer", increases the duration of healing reduction to 2.5 seconds.
 * Deckard's level 7 Talent, "Emerald", makes his next "Horadric Cube" reduce the amount of healing received by enemies hit by 75% for 4 seconds.
 * Garrosh's level 1 Talent, "Body Check", reduces the amount of healing received by the enemy hero hit by 30% for 3 seconds.
 * His level 20 talent, "Inner Rage", increases the healing reduction to 75%.
 * Gul'dan's level 7 Talent, "Hunger for Power", permanently reduces his healing received from external sources by 25% for the benefit of increased Spell Power.
 * Lúcio's level 20 Talent, "Mixing Fire", allows his "High Five" to target enemy heroes, reducing healing of heroes hit by 50% for 3 seconds.
 * Malthael's level 7 Talent, "Touch of Death", reduces the amount of healing received by enemy heroes affected by his "Reaper's Mark" by 50% for 4 seconds.
 * Stitches's level 7 Talent, "Blight", reduces the amount of healing received by enemy heroes hit by 20% for 5 seconds.
 * Valeera's level 4 Talent, "Wound Poison", makes Valeera's next ability and subsequent abilities within 4 seconds reduce enemy healing by 50% for 4 seconds.
 * Varian's level 13 Talent, "Mortal Strike", reduces the amount of healing received by enemy heroes hit by his "Heroic Strike" by 40% for 4 seconds.
 * Xul's level 20 Talent, "Mortal Wound", reduces the amount of healing received by enemies hit by his "Spectral Scythe" by 75% for 4 seconds.