Mana

Mana is used to cast most active abilities. All units that use Mana in some way have a maximum amount of Mana they can have at one (Max Mana) and cannot use an ability if they do not meet the Mana Cost. Mana can be restored via Mana Regeneration (measured in Mana gained/second) or certain Mana restorers.

Heroes gain 13 Max Mana per each point of Intelligence.

Mana Regeneration

All heroes have a base Mana Regeneration of +0.01 Mana/sec. Each point of Intelligence increases a Hero's base Mana Regeneration by 0.04. Some non-hero units that have Mana may or may not have a base Mana Regeneration.

Mana Regeneration can be increased by items and abilities that grant either percentage Mana Regeneration or flat Mana Regeneration. Percentage Mana Regeneration increases your base Mana Regen by that percentage. Flat Mana Regeneration granted is not multiplied by percentage Mana Regeneration.

Formula: Total Mana Regeneration = (Base Mana Regeneration + 0.04*Intelligence ) * ( % Mana Regeneration ) + ( flat Mana Regeneration )

Max Mana Sources

Items

Item	+Max Mana	+Mana from INT	Total Mana increase
Kuldra's Sheepstick	0	650	650
Harkon's Blade	0	455	455
Frostfield Plate	0	390	390
Jade Spire	0	390	390
Icon of the Goddess	350	0	350
Grimoire of Power	0	338	338
Sand Scepter	0	325	325
Ring of Sorcery	250	78	328
Sorcery Boots	250	78	328
Acolyte's Staff	0	325	325
Master's Legacy	150	130	280
Staff of the Master	150	130	280
Hellflower	0	260	260
Puzzlebox	0	234/286/338	234/286/338
Dawnbringer	0	234	234
Frozen Light	0	208	208
Lightbrand	0	208	208
Searing Light	0	208	208
Null Stone	200	0	200
Pickled Brain	200	0	200
Spell Sunder	200	0	200
Codex	0	195/221/247/273/299	195/221/247/273/299
Luminous Prism	0	195	195
Sacrificial Stone (charged)	0	156	156
Tablet of Command	0	156	156
Blessed Orb	0	130	130
Frostwolf's Skull	0	130	130
Geometer's Bane	0	130	130
Restoration Stone	0	130	130
Spellshards	0	130	130
Steamboots (Intelligence)	0	130	130
Stormspirit	0	130	130
Glowstone	120	0	120
Grave Locket (charged)	0	117	117
Sacrificial Stone (uncharged)	0	117	117
Energizer	0	91	91
Grave Locket (uncharged)	0	91	91
Amulet of Exile	0	78	78
Apprentice's Robe	0	78	78
Arcana	0	78	78
Void Talisman	0	78	78
Astrolabe	0	65	65
Barrier Idol	0	65	65
Soultrap	0	65	65
Major Totem	0	52	52
Blood Chalice	0	39	39
Fortified Bracer	0	39	39
Madfred's Brass Knuckles	0	39	39
Mark of the Novice	0	39	39
Plated Greaves	0	39	39
Power Supply	0	39	39
Soulscream Ring	0	39	39
Pretender's Crown	0	26	26
Refreshing Ornament	0	26	26
Shield of the Five	0	26	26
Orb of Zamos	0	26	26
Minor Totem	0	13	13

Abilities

Hero/Item	Source	Target	+Max Mana	Duration	Notes
Glacius	Chilling Presence	Aura (Ally Units)	25/50/75/100	N/A	Bonus is removed while Glacius is dead
Parallax	Dark Mana	Self	2/4/6/8	N/A	Gains 1 charge per enemy hero hit with Parallax's abilities; Maximum of 120 charges; Loses 20% of charges on death

Mana Regeneration Sources

Items

(Excludes Mana Regeneration from Intelligence)

Item	+Mana Regen
Hellflower	200%
Kuldra's Sheepstick	200%
Restoration Stone	200%
Spell Sunder	200%
Null Stone	150%
Runed Cleaver	150%
Perpetual Cogwheel	150%
Stormspirit	150%
Harkon's Blade	125%
Sustainer	125%
Jade Spire	100% + 2 (from Aura)
Nome's Wisdom	100% + 1 (from Aura)
Manatube	100%
Spellshards	100%
Blood Chalice	75%
Arcana	50%
Scarab	50%
Icon of the Goddess	20% + 10% per charge
Dawnbringer	5
Frozen Light	4
Searing Light	4
Grimoire of Power	3
Lightbrand	3
Abyssal Skull	0.8 (from Aura)
Ring of the Teacher	0.65 (from Aura)

Abilities

Hero/Item	Source	Target	+Mana Regen	Duration	Notes
Artesia	Essence Projection	Aura (Ally Units)	20/30/40	N/A	Applies to units around the Projection; Damage Mode only; Projection lasts 20 seconds
Bottle	Activation	Self	41.6666	3 seconds	Dispels on damage taken
Glacius	Chilling Presence	Aura (Ally Heroes)	0.5/1/1.5/2	N/A
Icon of the Goddess	Passive	Self	20	15 seconds	Applies Gift of the Goddess whenever user gains charges
Jade Spire	Aura	Ally Units	2	N/A	Does not stack with Ring of the Teacher and Nome's Wisdom
Jade Spire	Activation	Self	500%	4 seconds
Kane	Offensive Force	Ally Heroes (Aura)	1/2.5/4/5.5% of missing Mana	N/A	Applies after not taking damage for 8 seconds
Mana Potion	Activation	Ally Units	5	20 seconds	Dispels on damage taken from non-creep units
Monkey King	Flying Nimbus	Self	5/7.5/10	N/A	Applies after not taking damage for 5 seconds; Removed when taking damage from heroes or towers
Nome's Wisdom	Aura	Ally Units	0.75	N/A	Does not stack with Ring of the Teacher and Jade Spire
Rejuvenation Potion	Activation	Ally Units	45	20 seconds	Dispels on damage taken from non-creep units
Salomon	Wish for Revenge	Self	4/8/12	30 seconds
Warchief	Warcry	Ally Heroes (Aura)	10/20/30	12 seconds
Whispering Helm	Activation	Non-hero Unit	1	N/A	Permanently applies to Dominated creep
Wildsoul	Natural Attunement	Self	0.5/1/1.5/2	N/A

Mana Reduction

 Moira's Mana Sunder reduces Mana Regeneration by 100% while the target is regaining Mana. It also reduces the target's Max Mana by 90% for the first 1/1.5/2/2.5 seconds, which is regained over 0.9 seconds afterwards. If the target spends Mana while restoring Mana and has more than 1500 Max Mana, its Max Mana is reduced by 90% for 1 second, regaining it instantly afterwards.

Mana Restorers

These effects give Mana to units in a method that isn't Mana Regeneration.

Unit/Item	Source	Target	Mana restored	Notes
Bananas	Activation	Self	1000
Blood Chalice	Activation	Self	100
Circe	Twisted Visage	Self	100%
Electrician	Energy Absorption	Self	12/16/20/24 per charge	Enemy heroes give 3 charges; non-hero units give 1 charge
Fayde	Cull	Self	Varies	Restores Mana equal to 50% of total Mana drained; drains 7/14/21/28% Max Mana per target
Gauntlet	Infernal Instability	Self	40/45/50/55	Applies if Infernal Instability expires via timer
Mana Battery	Activation	Self	15 per charge	Gains a charge per enemy ability use within 1200 radius; Max 10 charges
Nymphora	Grace of the Nymph	Ally Units	18.75/37.5/56.25/75 per second	Restores 75/150/225/300 Mana over 4 seconds; dispels on damage taken by player-controlled units
Oogie	Kindled Fury	Passive	8/12/16/20% missing Mana
Oogie	Primal Surge	Self	40/50/60% damage taken
Plague Rider	Extinguish	Self	15/30/45/60% target's Health
Power Supply	Activation	Self	15 per charge	Gains a charge per enemy ability use within 1200 radius; Max 15 charges
Ring of Sorcery	Activation	Ally Units	135
Shadowblade	Essence Shift	Passive	40/60/80% of Intelligence	Requires SotM; applies on attack; applies while Intelligence is copied
Sorcery Boots	Activation	Ally Units	160
Soul Reaper	Inhuman Nature	Ally Hero	12/24/36/48	Stores a charge on kill or deny; heroes give 2 charges; max 10 charges
The Chipper	Focus Buffer	Self	Varies	Restores Mana equal to 50% of Magic Damage absorbed by Focus Buffer

Mana steal

These abilities drain Mana from the target and gives the user Mana equal to the amount of Mana drained. This means that if the target has less Mana than the amount it can drain, then it will give the user as much Mana as the target has.

Unit/Item	Source	Target	Mana stolen	Notes
Succubus	Cursed Embrace	Self	5% per second	Steals Mana every second while channeling; 5 second channel time
Witch Slayer	Power Drain	Self	25/50/75/100 per second	Steals Mana while channeling; 4 second channel time

Mana Drain

These effects remove Mana from a unit's Mana pool. Some effects also deal damage based on the amount of Mana drained.

Unit/Item	Source	Target	Mana drained	Notes
Electrician	Energy Absorption	Enemy Units	8/10/12/14% Max Mana
Fayde	Cull	Enemy Units	7/14/21/28% Max Mana
Magebane	Mana Combustion	Passive	6/14/22/30 + 3/4/5/6% Max Mana	Applies on attack; deals 60% of Mana burnt in Physical Damage; 33% effectiveness on illusions
Moira	Mana Sunder	Enemy Hero	100%	After 1/1.5/2/2.5 seconds, target regains lost Mana over 5 seconds; spending Mana while regaining Mana drains all Mana then restores it over 5 seconds after 1 second
Nullfire Blade	Passive	On Attack	40/60/80	Deals 50% of Mana burnt in Physical Damage
Puzzlebox Mauler	Manaburn	Passive	25/50/75	Deals 100% of Mana burnt in Physical Damage
Puzzlebox Wizard	Mana Burn	Enemy Unit	125/175/225	Deals 100% of Mana burnt in Magic Damage
Shadowblade	Essence Shift	On Attack	40/60/80% of Intelligence	Requires SotM; applies while Intelligence is copied
Succubus	Cursed Embrace	Enemy Unit	5% Max Mana per second
Vagabond	Mystic Orb's Burn	Enemy Unit	100	Deals 100% of Mana burnt in Magic Damage
Witch Slayer	Power Drain	Enemy Unit	25/50/75/100 per second