Mana

Play Out of mana!

“

Play It's a new age of magic!

— Keeper of the Light

”

Mana (also known as MP, which is short for mana points) represents the magic power of a unit. It is used as a cost for the majority of active abilities. Every hero has a base mana pool of 75, while most non-heroes only have a set mana pool if they have abilities which require mana, with a few exceptions. The mana values are set and can't be altered. This means a unit's maximum mana pool can never drop below its set value. However, a hero's mana pool gets bigger for every intelligence point they have. Each point of intelligence increases a hero's mana pool by 11. Since every hero has some base intelligence and gains intelligence as they level up, their mana pool gets bigger the higher their level is. A hero's base intelligence cannot drop below 1, however, it is possible to reach 0 with the help of negative bonus intelligence.

Note: Although gaining/losing intelligence usually does not increase a hero's current mana, some abilities which grant/reduce intelligence are coded so that they also increase/reduce current mana, instead of only maximum mana.

Display[edit]

Blue bar shows mana. Right number is mana regeneration.

The mana of a unit is displayed in the HUD. For some units, it also may be displayed in the game world.

HUD mana bar[edit]

The mana bars of enemy heroes and creep-heroes are not visible above their head.

Despite having no mana pool, Familiars still have a mana bar drawn.

Mana of the selected unit is displayed in the HUD as a blue bar at the bottom of the screen. Unlike the health bar, the mana bar has always the same color. The left number at the center of the bar is the unit's current mana points and the right number is its maximum mana pool. Though not displayed in the HUD, a unit's total mana does use decimal numbers. The visible numbers in the HUD are always rounded up.

The mana regeneration value is only visible on the hero and creep-hero mana bars in the HUD. The regen from other units is not visible. Though the HUD shows only one decimal for mana regeneration, it uses more decimals. The value in the HUD is rounded up.

Over-head mana bar[edit]

The mana bar of heroes and creep-heroes are displayed right above their heads, below their health bar. Just like the mana bar in the HUD, this bar is always blue. Even when a creep-hero has no mana pool, a mana bar is still drawn below their health bar above them.

There are no different types of mana bars. They do not have lines like the health bars and do not differ from each other in any way.

Using mana[edit]

Most active and some passive abilities need mana in order to be used. This includes item abilities. The mana cost of such are displayed at the bottom left corner of the ability icon in the HUD, and once more inside the ability description in the bottom left corner. Most abilities have a fixed amount of mana cost, but some are dynamic (e.g. based on mana pool, or costing mana over time). The Arcane Rune is the only thing which can manipulate the mana cost of spells, reducing them by 40%. However, this only affects their base cost. Mana cost over time is not affected.

Modifying mana[edit]

Some heroes, units (neutral creeps and summoned units) and items have abilities that can affect the mana pool of one or multiple units.

Current mana increasing abilities[edit]

Just like healing health, a unit's current mana can be increased by many abilities, mostly referred to as restoring mana. Restoring mana cannot increase the unit's mana beyond its maximum mana pool. Spells may restore mana in a burst on a target, restoring an amount of mana in an instance, or restore mana over time, where the amount is split up in multiple instances. The difference between restoring mana and regenerating mana is that restoring is independent from the regeneration ticks. Unlike regeneration, the restore intervals can vary. Restoring mana is not reflected in the regeneration number on the mana bar.

There are several other abilities which are able to increase a unit's current mana, but these effects do not count as restoring. This means, similar to how damage flagged as HP Removal does not react on on-damage effects, these abilities fully ignore abilities which react on restoring effects, like Tether.

Ghost Shroud is the only ability able to amplify mana restoring effects, similar to how damage can be amplified. It also amplifies mana regeneration. However, some sources of mana restoration are not amplified.

The following abilities are able to increase unit's current mana:

Restoring abilities

Bane - Fiend's Grip
Restores for: The caster
Restore interval: 0.5
Restored amount: 5% of target's max mana
Max duration: 5
Drains mana from the target.
Chen - Holy Persuasion
Restores for: The target
Restored amount: Max mana
Fully restores the targeted creep's mana pool.
Invoker - EMP
Restores for: The caster
Restored amount: 50% of mana burned
Restores mana to invoker equal to 50% of the mana every affected unit lost from the EMP.
Io - Tether
Restores for: The target
Whenever Io gets mana restored, the tethered ally gets restored by 150% of the amount.
Keeper of the Light - Chakra Magic
Restores for: The target
Restored amount: 75/150/225/300
Lich - Sacrifice
Restores for: The caster
Restored amount: 25%/40%/55%/70% of target current health
Lifestealer - Control
Restores for: The infested unit
Restored amount: Max mana
Upon taking control of the infested unit, its mana gets fully restored.
Lion - Mana Drain
Restores for: The caster
Restore interval: 0.2
Restored amount per second: 20/40/60/120
Max duration: 5
Drains mana from the target.
Medusa - Mystic Snake
Restores for: The caster
Restored amount: 11%/14%/17%/20% of target's max mana per jump
Max jumps: 3/4/5/6
Steals a percentage of each hit target's max mana, then transfers all stolen mana to the caster when it returns
Outworld Devourer - Arcane Orb
Restores for: The caster
Restored amount: 11 per restored intelligence
Upon losing the debuff, enemies get 11 mana per missing intelligence point back. This only applies to enemies regaining their intelligence, not to the caster.
Outworld Devourer - Essence Aura
Restores for: Whoever procs it
Restored amount: 10%/15%/20%/25% of max mana
Has a 40% chance to proc on any ally who casts a spell. Does not count as restoring.
Phoenix - Supernova
Restores for: The caster ( and the targeted ally)
Restored amount: max mana
Fully restores the caster (and the ally) to full mana if successfully reborn.
Pugna - Life Drain
Restores for: The caster or the targeted ally
Restore interval: 0.25
Restored amount per second: 120/160/200 ( 180/240/300)
Only restores mana when Pugna or the targeted ally are at full health. Restores for the same amount as it damages, so the values are affected by any sort of damage reduction. Does not count as restoring.
Weaver - Time Lapse
Restores for: The caster
Sets the caster's mana back to what it was 5 seconds ago, so the restoration varies or might not restore if the mana was lower 5 seconds ago.

Restoring items

Arcane Boots - Replenish Mana
Restores for: All allied units within range
Restored amount: 135
Cheese - Fondue
Restores for: The caster
Restored amount: 1500
Enchanted Mango - Eat Mango
Restores for: The target
Restored amount: 150
Guardian Greaves - Mend
Restores for: All allied units within range
Restored amount: 160
Magic Stick - Energy Charge
Restores for: The caster
Restored amount: 15 per charge
Max charges: 10
Magic Wand - Energy Charge
Restores for: The caster
Restored amount: 15 per charge
Max charges: 17
Soul Ring - Sacrifice
Restores for: The caster
Restored amount: 150
If the added 150 mana would exceed the user's current mana pool, its maximum mana pool is temporarily increased by the exceeding amount. At the end of the duration, the user loses any of the unused mana of the 150 mana and its maximum mana pool goes back to normal if it was exceeded.

Current mana reducing abilities[edit]

There are many abilities capable of reducing mana, referred to as burning if it causes damage based off mana removed, draining if the mana is stolen and given to the caster or removed if the mana is simply reduced.

The following abilities reduce a unit's current mana:

Reducing abilities

Anti-Mage - Mana Break
Affects: The target
Mana burned: 28/40/52/64
Mana burned as damage: 60%
Bane - Fiend's Grip
Affects: The target
Drain interval: 0.5
Mana drained: 5% of target max mana
Max duration: 5
Clockwerk - Power Cogs
Affects: Any enemy within range
Mana burned: 80/120/160/200
Mana burned as damage: 80/120/160/200
Each cog can only hit one unit.
Invoker - EMP
Affects: All enemies within range
Mana burned: 100/175/250/325/400/475/550
Mana burned as damage: 50%
Io - Overcharge
Affects: Caster
Mana removed per second: 6% of caster's current mana
Keeper of the Light - Mana Leak
Affects: The target
Mana removed per 100 moved distance: 5%
Duration: 5/6/7/8
The target loses mana as it moves.
Lion - Mana Drain
Affects: The target
Drained interval: 0.2
Mana drained per second: 20/40/60/120
Max duration: 5
Medusa - Mystic Snake
Affects: The units it jumps to
Mana drained: 11%/14%/17%/20% of target's max mana
Medusa - Mana Shield
Affects: The caster
Mana removed: 0.625/0.526/0.455/0.4 per damage taken.
Blocks 60% of incoming damage, draining mana instead.
Necronomicon Archer - Mana Burn
Affects: The target
Mana burned: 125/175/225
Mana burned as damage: 100%
Necronomicon Warrior - Mana Break
Affects: The target
Mana burned: 20/30/40
Mana burned as damage: 60%
Nyx Assassin - Mana Burn
Affects: The target
Mana burned: 350%/400%/450%/500% of target intelligence
Mana burned as damage: 100%
Outworld Devourer - Arcane Orb
Affects: The target
Mana removed: 11/22/33/44
Hit enemies first lose mana and then get their intelligence stolen.
Outworld Devourer - Sanity's Eclipse
Affects: All heroes and illusions within range
Mana removed: 40% of heroes and illusions max mana
Effect Radius: 375/475/575
Applies damage first and then the mana loss.
Satyr Mindstealer - Mana Burn
Affects: The target
Mana burned: 100
Mana burned as damage: 100%
Weaver - Time Lapse
Affects: The caster
Sets the caster's mana back to what it was 5 seconds ago, so the reduction varies or might not reduce if the mana was higher 5 seconds ago.

Reducing items

Diffusal Blade - Manabreak
Affects: The target
Mana burned: 50
Mana burned as damage: 80%
Illusions only burn 16/8 (melee/ranged) mana per hit.
Soul Ring - Sacrifice
Affects: The caster
Mana removed: Up to 150
If the previously gained mana from Sacrifice stays unused, it gets removed again.

Maximum mana affecting abilities[edit]

Besides intelligence and raw bonuses from items, there are only very few abilities which can alter a unit's maximum mana.

This list does not include intelligence affecting sources.

Max mana altering abilities

Keeper of the Light - Chakra Magic
Max mana bonus: 75/150/225/300
The target's current mana stays the same, means its current mana percentage does not stay the same.
Outworld Devourer - Essence Aura
Max mana bonus: 125/200/275/350
Passively increases Outworld Devourer's mana pool.
Soul Ring - Sacrifice
Max mana bonus: Up to 150
If the added 150 mana would exceed the user's current mana pool, its maximum mana pool is temporarily increased by the exceeding amount.

Mana granting items[edit]

Many items grant their owners a mana bonus, increasing their maximum mana when equipped, either by increasing their intelligence, or by just giving them a flat bonus. In either case, the current mana percentage stays the same.

The following items increase a unit's maximum mana pool. The affects are limited to the item's owner, which must have the item equipped.

Bonus mana

Item	Value	Item cost	Cost per value point
Aether Lens	250	2350	9.4
Aghanim's Scepter	285	4200	14.74
Arcane Boots	250	1300	5.2
Blade Mail	110	2200	20
Bloodstone	425	4850	11.41
Bloodthorn	275	7195	26.16
Bracer	33	490	14.85
Buckler	22	800	36.36
Circlet	22	165	7.5
Crimson Guard	22	3550	161.36
Dagon 1	176	2720	15.45
Dagon 2	209	3970	19
Dagon 3	242	5220	21.57
Dagon 4	275	6470	23.53
Dagon 5	308	7720	25.06
Diffusal Blade 1	110	3150	28.64
Diffusal Blade 2	165	3850	23.33
Drum of Endurance	66	1640	24.85
Echo Sabre	110	2650	24.09
Energy Booster	250	900	3.6
Ethereal Blade	110	4700	42.73
Eul's Scepter of Divinity	110	2750	25
Eye of Skadi	525	5775	11
Force Staff	110	2250	20.45
Ghost Scepter	55	1500	27.27
Guardian Greaves	305	5375	17.62
Headdress	22	675	30.68
Helm of the Dominator	22	2025	92.05
Hurricane Pike	110	4650	42.27
Iron Branch	11	50	4.55
Linken's Sphere	165	4850	29.39
Lotus Orb	250	4000	16
Magic Wand	44	465	10.57
Manta Style	110	5000	45.45
Mantle of Intelligence	33	150	4.55
Mekansm	55	2375	43.18
Mystic Staff	275	2700	9.82
Necronomicon 1	165	2650	16.06
Necronomicon 2	231	3850	16.67
Necronomicon 3	264	5050	19.13
Null Talisman	66	470	7.12
Oblivion Staff	110	1650	15
Octarine Core	700	5900	8.43
Orchid Malevolence	275	4075	14.82
Point Booster	175	1200	6.86
Power Treads (Intelligence)	110	1350	12.27
Ring of Aquila	33	985	29.85
Robe of the Magi	66	450	6.82
Rod of Atos	220	3080	14
Scythe of Vyse	385	5700	14.81
Shiva's Guard	330	4750	14.39
Silver Edge	165	5550	33.64
Soul Booster	425	3200	7.53
Staff of Wizardry	110	1000	9.09
Ultimate Orb	110	2150	19.55
Urn of Shadows	22	875	39.77
Veil of Discord	132	2340	17.73
Vladmir's Offering	22	2275	103.41
Wraith Band	33	485	14.7
Values may include portions from actives or auras.

Mana regeneration[edit]

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 regain mana in 0.01 second intervals. Each second, a hero regains mana equal to their base rate (0.01 for every hero, except Techies with 0.02), plus 0.04/second for every point of intelligence, plus any bonuses from items and abilities. There are sources of flat mana regen bonuses and source that increase mana regeneration by a percentage. The Fountains of both teams regenerate any unit belonging to their team within range by 14 base + 4% of the unit's maximum mana per second. Although mana regeneration is not capped, the HUD does not show any mana Regeneration over 500 mana per second.

Any source of flat mana regeneration simply adds its value on top of the unit's mana regeneration, if it has a base mana regen. This flat bonus is unaffected by any percentage mana regen bonus.

Percentage mana regen multiplies the unit's base mana regen + regen from intelligence and then adds it to its mana regeneration. This means that this bonus is also unaffected by other percentage mana regen sources.

Example:

A hero with 20 intelligence has a main mana regeneration of (0.01 + 20 * 0.04) = 0.81.

One Sage's Mask increases it to: 0.81 * (1 + 0.5) = 1.215 MP/s
Two Sage's Masks increase it to: 0.81 * (1 + 0.5 + 0.5) = 1.62 MP/s
Using a Clarity on top of that results in: 0.81 * (1 + 0.5 + 0.5) + 2.6315789473684 = 4.2515789473684 MP/s

So the full formula is:

(Base mana regeneration + 0.04 * intelligence) * (1 + sum of all percentage bonuses) + sum of all flat bonuses

Without regeneration bonuses, the time to regenerate all mana typically ranges from 318 to 324 seconds.

Base mana regeneration[edit]

Heroes
Every hero has a base mana regeneration rate of 0.01 MP/sec, except for Techies with 0.02 MP/sec.

Creeps
All units without a mana pool also have no mana regeneration. All other units have the following base mana regen:

	Unit	MP/sec
	Ancient Granite Golem	1.5
	Ancient Rock Golem	1
	Ancient Rumblehide	1
	Ancient Thunderhide	1
	Centaur Conqueror	0
	Dark Troll Summoner	0
	Ghost	0.75
	Harpy Stormcrafter	0
	Hellbear Smasher	0
	Hill Troll Priest	0.75
	Mud Golem	1
	Ogre Frostmage	0
	Satyr Mindstealer	0
	Satyr Tormenter	0
	Satyr Trickster	0
	Wildwing Ripper	0
	Ranged lane creeps	0.75

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

	Summon	MP/sec
	Earth	2
	Forged Spirit	4
	Spirit Bear	0
	Storm	1.5

Modifying mana regeneration[edit]

Just like for mana, 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 or by a percentage, but some also increase it based on certain things, like health or attributes.

Mana regeneration affecting abilities[edit]

Mana regeneration affecting abilities usually either affect the regen rate heavily, but only last temporarily, or affect it in smaller amounts, but may last permanently.

The following abilities affect a unit's mana regeneration:

Hero/unit abilities

Alchemist - Chemical Rage
Affects: The caster
Mana regen bonus: 3/7.5/12
Duration: 25
Does not count as mana regeneration bonus, instead increases base regen, so it is affected by percentage based mana regeneration bonuses.
Crystal Maiden - Arcane Aura
Affects: All allies on the map
Allies mana regen bonus: 1/1.5/2/3
Self mana regen bonus: 2/3/4/8
Fountain - Rejuvenation Aura
Affects: All allied units within range
Mana regen bonus: 14 + 4% of max mana
Buff linger duration: 3
Hill Troll Priest - Mana Aura
Affects: All allied units within range
Mana regen bonus: 3
Necrophos - Death Pulse
Affects: Self
Mana regen bonus: 1/3/5/7 per stack
Stack duration: 7
Hero kills grant 10 stacks at once. No stack limit.
Pugna - Nether Ward
Affects: All enemy units within range
Max mana as Mana regen reduction: 0.25%/0.5%/0.75%/1%

Item abilities

Aegis of the Immortal
Affects: The owner
Mana regen bonus: 20% of max mana
Duration: 5
Regenerates wielder upon expiring. Regen is lost upon taking player based damage.
Bloodstone - Bloodpact
Affects: Self
Mana regen bonus: 1 per charge
Starts with 12 charges. Gains 1 charge per kill or when an enemy dies within range. Loses 33.33% of charges upon death.
Bottle - Regenerate
Affects: The target
Mana regen bonus: 24
Duration: 2.5
Can hold up to 3 charges. Charges replenish when getting within range of the team's fountain. Regen is lost upon taking player based damage.
Clarity - Replenish
Affects: The target
Mana regen bonus: 3.8
Duration: 50
Has 1 charge. Regen is lost upon taking player based damage.
Regeneration Rune - Regeneration
Mana regen bonus: 67
Duration: 30
Regen is lost upon taking player based damage or when at full health and mana.
Ring of Aquila - Aquila Aura
Affects: All allied units within range
Mana regen bonus: 0.65
Buff linger duration: 0.5
Can be toggled off to affect heroes only. Does not stack with Basilius Aura or Vladmir's Aura.
Ring of Basilius - Basilius Aura
Affects: All allied units within range
Mana regen bonus: 0.65
Buff linger duration: 0.5
Can be toggled off to affect heroes only. Does not stack with Aquila Aura or Vladmir's Aura.
Vladmir's Offering - Vladmir's Aura
Affects: All allied units within range
Mana regen bonus: 0.8
Does not stack with Basilius Aura or Aquila Aura.

Mana regeneration granting items[edit]

These items passively increase the owner's mana regeneration by merely having them equipped. They either grant a flat bonus, or a percentage bonus.

These lists exclude item abilities, as they are listed above. They only list the items' bonuses. Items in grey fields grant mana regeneration exclusively through the intelligence they grant.

Basic items

Item	Flat regen bonus	% regen bonus	Cost (Gold)	Mana regen/Cost (x1000)	% mana regen/Cost (x1000)
Iron Branch	0.04	-	50	0.8	-
Circlet	0.08	-	165	0.48	-
Mantle of Intelligence	0.12	-	150	0.8	-
Robe of the Magi	0.24	-	450	0.53	-
Staff of Wizardry	0.4	-	1000	0.4	-
Ultimate Orb	0.4	-	2100	0.19	-
Mystic Staff	1.00	-	2700	0.37	-
Ghost Scepter	0.28	-	1600	0.17	-
Infused Raindrop	0.85	-	225	3.77	-
Sage's Mask	-	150%	325	-	153.84%
Void Stone	-	2100%	850	-	114.28%

Upgraded items

Item	Flat regen bonus	% regen bonus	Cost (Gold)	Mana regen/Cost (x1000)	% mana regen/Cost (x1000)
Mekansm	0.15	-	2300	0.06	-
Drum of Endurance	0.36	50%	1850	0.19	27.03%
Medallion of Courage	-	150%	1200	-	41.66%
Solar Crest	-	175%	3000	-	25%
Ring of Aquila	0.77	-	985	0.78	-
Ring of Basilius	0.65	-	500	1.3	-
Vladmir's Offering	0.88	-	2375	0.37	-
Urn of Shadows	1.08	-	875	-	57.14%
Buckler	0.08	-	800	0.10	-
Headdress	0.08	-	600	0.13	-
Perseverance	-	4125%	1700	-	73.53%
Echo Sabre	0.4	275%	2650	0.15	28.30%
Oblivion Staff	0.4	275%	1675	0.24	44.77%
Power Treads (Intelligence)	0.32	-	1400	0.22	-
Soul Ring	-	150%	750	-	62.5%
Bracer	0.12	-	525	0.22	-
Magic Wand	0.12	-	500	0.24	-
Wraith Band	0.12	-	485	0.24	-
Null Talisman	0.24	-	470	0.51	-
Aether Lens	-	100%	2350	-	42.55%
Ethereal Blade	0.4	-	4900	0.08	-
Battle Fury	-	5150%	4350	-	34.48%
Scythe of Vyse	1.4	5150%	5675	0.24	26.43%
Refresher Orb	-	6250%	5200	-	48.08
Aghanim's Scepter	0.4	-	4200	0.09	-
Bloodthorn	1	5150%	7195	0.14	20.85%
Orchid Malevolence	1	3150%	4075	0.25	36.81%
Rod of Atos	1.2	-	3100	0.39	-
Dagon 1	0.52	-	2720	0.19	-
Dagon 2	0.64	-	3970	0.16	-
Dagon 3	0.76	-	5220	0.14	-
Dagon 4	0.88	-	6470	0.13	-
Dagon 5	1.00	-	7720	0.12	-
Necronomicon 1	0.6	-	2700	0.22	-
Necronomicon 2	0.84	-	3950	0.21	-
Necronomicon 3	0.96	-	5200	0.18	-
Eul's Scepter of Divinity	0.4	5150%	2750	0.15	54.54%
Veil of Discord	0.24	-	2670	0.09	-
Force Staff	0.4	-	2250	0.17	-
Blade Mail	0.4	-	2200	0.18	-
Crimson Guard	0.08	-	3850	0.02	-
Linken's Sphere	0.6	5150%	5175	0.11	28.98%
Bloodstone	-	6200%	4900	-	40.81%
Manta Style	0.4	-	4950	0.08	-
Shiva's Guard	1.2	-	4700	0.25	-
Eye of Skadi	1	-	5675	0.17	-
Diffusal Blade 1	0.4	-	3150	0.13	-
Diffusal Blade 2	0.6	-	3850	0.16	-
Octarine Core	1.0	-	5900	0.17
Lotus Orb	-	4125%	4000	-	31.25%