Mana regeneration

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Mana regeneration
 
Play Out of mana!
Play Light channels through you!!
Keeper of the Light
Bonus Mana Regen required to regenerate max Mana in a given time (0.9 base)

Mana Regeneration determines the amount of mana a unit regains each second. It is shown as a small number with a + sign at the right side of the unit's mana bar.

Heroes also gain mana regeneration amplification based on their Intelligence attribute symbol.png intelligence. Each point of intelligence amplifies the hero's mana regeneration by 1.8%.

Mana regeneration restores the unit in 0.1 second intervals. This rate cannot be changed by anything. Mana regeneration has no cap, although the HUD does not show regeneration over 500 mana per second.

Mana regen amplification[edit]

Each point of Intelligence attribute symbol.png intelligence amplifies the hero's mana regeneration by 1.8%, stacking additively with each point of intelligence. The hero's current mana regeneration gets multiplied by the total amplification the hero has.

For strength and agility heroes:

Mana Regeneration = (Base + Sum of Flat Bonuses) × (1 + intelligence × 0.018)

For intelligence heroes:

Mana Regeneration = (Base + Sum of Flat Bonuses) × (1 + intelligence × 0.018 * 1.25)

Besides intelligence, the following abilities also amplify mana regeneration.

Mana regeneration amplifying abilities

Base mana regeneration[edit]

Most units with a mana pool have a set base mana regeneration, differing from unit to unit. All heroes have a base regeneration, while some non-hero units may not have any base regen, but most of them do.

Heroes[edit]

All heroes have a base mana regeneration rate of 0.9.

Creeps[edit]

All units without a mana pool also have no mana regeneration.

Units Mana regen
Mega Ranged Creep, Ranged Creep, Super Ranged Creep 0.75
Alpha Wolf, Ancient Black Dragon, Ancient Black Drake, Ancient Prowler Acolyte, Ancient Prowler Shaman, Ancient Rock Golem, Ancient Rumblehide, Ancient Thunderhide, Centaur Conqueror, Centaur Courser, Dark Troll Summoner, Fell Spirit, Ghost, Giant Wolf, Harpy Scout, Harpy Stormcrafter, Hellbear, Hellbear Smasher, Hill Troll, Hill Troll Berserker, Hill Troll Priest, Kobold, Kobold Foreman, Kobold Soldier, Mud Golem, Ogre Bruiser, Ogre Frostmage, Satyr Banisher, Satyr Mindstealer, Satyr Tormenter, Shard Golem, Vhoul Assassin, Wildwing, Wildwing Ripper 1
Ancient Granite Golem 1.5

Summons[edit]

All summons without a mana pool also have no mana regeneration. All other summons have the following mana regen:

Summons Mana regen
Spirit Bear 0.5
Storm 1.5
Earth 2
Forged Spirit 4

Modifying mana regeneration[edit]

Just like for health, there are many abilities and items which can change how fast a unit regenerates mana. Most of them increase mana regeneration rate by adding a flat bonus, but some also increase it based on certain things, like mana or attributes. They can be passive bonuses which grant a permanent bonus or be conditionally activated, or be short, but grant a strong bonus.

Mana regeneration affecting abilities[edit]

The following abilities affect a unit's mana regeneration:

Hero/unit abilities
  • Chemical Rage icon.png
    Mana regen bonus: 3/7.5/12
    Duration: 25
    Affects the caster.
  • Arcane Aura icon.png
    Allies mana regen bonus: 0.7/0.9/1.1/1.3
    Self mana regen bonus: 1.8/2.6/3.4/4.2
    Affects all allies with a mana pool on the map.
  • Rejuvenation Aura icon.png
    Max mana as regen bonus: 6%
    Buff linger duration: 3
    Affects all allies within range.
  • Mana Aura (Hill Troll Priest) icon.png
    Mana regen bonus: 1.5
    Buff linger duration: 0.5
    Affects all allies within range.
  • Death Pulse icon.png
    Mana regen bonus per stack: 2.25/2.5/2.75/3
    Stack duration: 7
    Grants 1 stack for killing non-heroes and 6 for killing heroes. No stack limit.
  • Nether Ward icon.png
    Max mana as mana regen reduction: 0.25%/0.5%/0.75%/1%
    Buff linger duration: 0.5
    Affects all enemies within range.
Item abilities
  • Aegis of the Immortal icon.png
    Max mana as regen bonus: 20%
    Duration: 5
    Regenerates wielder upon expiring. Regen is lost upon taking player or Roshan based damage.
  • Bloodstone icon.png
    Mana regen bonus per charge: 0.35
    Affects the wielder. Starts with 14 charges. Gains 1 charge per kill or when an enemy dies within range. Loses a third of charges upon death.
  • Bottle (Full) icon.png
    Mana regen bonus: 20
    Duration: 2.5
    Affects the target ally. Regen is lost upon taking player or Roshan based damage.
  • Clarity icon.png
    Mana regen bonus: 3
    Duration: 50
    Affects the target ally. Regen is lost upon taking player or Roshan based damage.
  • Bottle (Regeneration) icon.png
    Max mana as regen bonus: 6%
    Duration: 30
    Regen is lost upon taking player or Roshan based damage.
  • Ring of Aquila (Active) icon.png
    Mana regen bonus: 0.5
    Buff linger duration: 0.5
    Affects all allies within range. Can be toggled off to affect heroes only.
  • Ring of Basilius (Active) icon.png
    Mana regen bonus: 0.5
    Buff linger duration: 0.5
    Affects all allies within range. Can be toggled off to affect heroes only.
  • Vladmir's Offering icon.png
    Mana regen bonus: 1
    Buff linger duration: 0.5
    Affects all allies within range.

Mana regeneration granting items[edit]

These items grant a flat mana regeneration bonus to the hero who has them equipped.

Mana regeneration granting items
Item Value Item cost Cost per value point
Aether Lens icon.png Aether Lens 1.25 2350 1880
Battle Fury icon.png Battle Fury 2.25 4400 1955.56
Bloodstone icon.png Bloodstone 2 4900 2450
Bloodthorn icon.png Bloodthorn 2.25 7205 3202.22
Drum of Endurance icon.png Drum of Endurance 0.75 1615 2153.33
Echo Sabre icon.png Echo Sabre 0.75 2650 3533.33
Eul's Scepter of Divinity icon.png Eul's Scepter of Divinity 2.25 2750 1222.22
Infused Raindrop icon.png Infused Raindrop 0.5 225 450
Linken's Sphere icon.png Linken's Sphere 2.25 5050 2244.44
Lotus Orb icon.png Lotus Orb 1.75 4000 2285.71
Medallion of Courage icon.png Medallion of Courage 0.5 1175 2350
Meteor Hammer icon.png Meteor Hammer 1.5 2625 1750
Necronomicon 1 icon.png Necronomicon 1 0.53 2400 4500
Necronomicon 2 icon.png Necronomicon 2 0.53 3700 6937.5
Necronomicon 3 icon.png Necronomicon 3 0.53 5000 9375
Oblivion Staff icon.png Oblivion Staff 0.75 1650 2200
Orchid Malevolence icon.png Orchid Malevolence 2.25 4075 1811.11
Perseverance icon.png Perseverance 1.5 1700 1133.33
Refresher Orb icon.png Refresher Orb 5 5100 1020
Sage's Mask icon.png Sage's Mask 0.5 325 650
Scythe of Vyse icon.png Scythe of Vyse 2.25 5700 2533.33
Solar Crest icon.png Solar Crest 1 2575 2575
Spirit Vessel icon.png Spirit Vessel 1 2975 2975
Urn of Shadows icon.png Urn of Shadows 1 875 875
Void Stone icon.png Void Stone 1 850 850

These items increase the hero's mana regen amp through the intelligence they provide.

Mana regen amplification granting items
Item Value Item cost Cost per value point
Aghanim's Scepter icon.png Aghanim's Scepter 10 4200 420
Blade Mail icon.png Blade Mail 10 2200 220
Bloodthorn icon.png Bloodthorn 25 7205 288.2
Bracer icon.png Bracer 3 465 155
Buckler icon.png Buckler 2 800 400
Circlet icon.png Circlet 2 165 82.5
Crimson Guard icon.png Crimson Guard 2 3550 1775
Diffusal Blade 1 icon.png Diffusal Blade 10 3150 315
Drum of Endurance icon.png Drum of Endurance 6 1615 269.17
Echo Sabre icon.png Echo Sabre 10 2650 265
Ethereal Blade icon.png Ethereal Blade 10 4700 470
Eul's Scepter of Divinity icon.png Eul's Scepter of Divinity 10 2750 275
Eye of Skadi icon.png Eye of Skadi 25 5500 220
Force Staff icon.png Force Staff 10 2250 225
Ghost Scepter icon.png Ghost Scepter 5 1500 300
Guardian Greaves icon.png Guardian Greaves 5 5450 1090
Headdress icon.png Headdress 2 650 325
Helm of the Dominator icon.png Helm of the Dominator 2 2000 1000
Hurricane Pike icon.png Hurricane Pike 13 4615 355
Iron Branch icon.png Iron Branch 1 50 50
Kaya icon.png Kaya 16 1950 121.88
Linken's Sphere icon.png Linken's Sphere 13 5050 388.46
Magic Wand icon.png Magic Wand 3 450 150
Manta Style icon.png Manta Style 10 4800 480
Mantle of Intelligence icon.png Mantle of Intelligence 3 135 45
Mekansm icon.png Mekansm 5 2350 470
Meteor Hammer icon.png Meteor Hammer 12 2625 218.75
Mystic Staff icon.png Mystic Staff 25 2700 108
Null Talisman icon.png Null Talisman 7 465 66.43
Oblivion Staff icon.png Oblivion Staff 10 1650 165
Octarine Core icon.png Octarine Core 25 5900 236
Orchid Malevolence icon.png Orchid Malevolence 25 4075 163
Power Treads (Intelligence) icon.png Power Treads (Intelligence) 10 1450 145
Ring of Aquila (Active) icon.png Ring of Aquila 3 965 321.67
Robe of the Magi icon.png Robe of the Magi 6 450 75
Rod of Atos icon.png Rod of Atos 20 2930 146.5
Scythe of Vyse icon.png Scythe of Vyse 35 5700 162.86
Shiva's Guard icon.png Shiva's Guard 30 4750 158.33
Silver Edge icon.png Silver Edge 15 5550 370
Spirit Vessel icon.png Spirit Vessel 2 2975 1487.5
Staff of Wizardry icon.png Staff of Wizardry 10 1000 100
Ultimate Orb icon.png Ultimate Orb 10 2150 215
Urn of Shadows icon.png Urn of Shadows 2 875 437.5
Veil of Discord icon.png Veil of Discord 14 2330 166.43
Vladmir's Offering icon.png Vladmir's Offering 2 2250 1125
Wraith Band icon.png Wraith Band 3 465 155