Mana

Blue bar shows Mana.

Mana represents the magic power of a hero. It appears in the UI as a blue bar at the bottom of the screen under the Health bar. The left number shows your current mana, while the right number shows your maximum mana. Mana is the resource used to cast most spells, if your current mana is lower than the amount needed to use a skill, you won't be able to use it.

A hero's maximum mana is 13 for each point of Intelligence. There are also items that increase total mana directly, such as Point Booster.

Mana Regeneration

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

Heroes regain mana every second equal to their base mana regen rate (.01 for most heroes), plus .04 for each point of Intelligence multiplied by any percentage increases from items. You can also get a mana regeneration boost by activating a Regeneration Rune.

Base Mana Regeneration

Every hero has a base mana regeneration rate.

All Heroes have a base mana regen of 0.01 except for the following:

• Goblin Techies: 0.02 mana/sec
• Alchemist (under Chemical Rage): 3/7.5/12 mana/sec

Mana Drain

Mana Drain is an effect that removes a Hero's mana. Certain types of mana drain will also deal damage proportional to the mana lost.

Sources of Mana Drain

Anti-Mage - Mana Break Mana Drain: 28/40/52/64 Damage: 60% of Mana Drained Damage Type: Physical	Bane - Fiend's Grip Mana Drain: 5% (10%*) for a maximum of 5 (7*) seconds. Channeled.
Clockwerk - Power Cogs Mana Drain: 80/120/160/200	Diffusal Blade - Feedback 3300 Mana Drain: 20 / 36 Upgraded Damage: 100% of Mana Drained Damage Type: Physical
Invoker - EMP Mana Drain: 100/150/200/250/300/350/400 Damage: 50% of mana drained. Damage Type: HP Removal (Pure if target dies from the hit.)	Keeper of the Light - Mana Leak Mana Drain: 3.5%/4%/4.5%/5% per 100 units target moves over a duration of 4/5/6/7 seconds.
Lion - Mana Drain Mana Drain: 20/40/60/120 over a maximum of 4 seconds. Channeled. Mana drained is returned to Lion.	Medusa - Mystic Snake Mana Drain: 20/30/40/50 for a maximum of 3/4/5/6 jumps. Mana stolen is increased by 25% per jump. Mana drained is returned to Medusa.
Necronomicon - Necronomicon Warrior - Mana Break Mana Drain: 25/50/75 Damage: 60% of Mana Drained Damage Type: Physical	Necronomicon - Necronomicon Archer - Mana Burn Mana Drain: 125/175/225
Nyx Assassin - Mana Burn Mana Drain: 5 (Multiplied by Hero's Intelligence) Damage: 100% of Mana Drained Damage Type: Magical	Outworld Devourer - Sanity's Eclipse Mana Drain: 75% of affected Hero's current mana. Only takes effect if the Intelligence difference between Outworld Devourer and the affected Hero is below a threshold of 10/30/50.
Pugna - Nether Ward Mana Drain: 1.5/3.0/4.5/6 for a maximum of 25 seconds. Drain takes the form of negative mana regeneration.	Satyr Soulstealer - Mana Burn Mana Drain: 100 Damage: 100% of mana drained. Damage Type: Magical
Silencer - Curse of the Silent Mana Drain: 8/16/24/32 over a maximum of 6 seconds. Effect is removed if unit casts a spell.

List of Items

List of Items that Grant Mana

Item	Bonus Mana
Eye of Skadi (5675)	575
Scythe of Vyse (5675)*	455
Soul Booster (3300)	400
Bloodstone (5050)	400
Shiva's Guard (4700)*	390
Mystic Staff (2700)*	325
Rod of Atos (3100)*	325
Orchid Malevolence (4125)*	325
Aghanim's Scepter (4200)	280
Arcane Boots (1450)	250
Energy Booster (1000)	250
Necronomicon (2700)*	195/273/312
Linken's Sphere (5175)*	195
Dagon (2780)*	169/195/221/247/273
Veil of Discord (2650)*	156
Point Booster (1200)	150
Staff of Wizardry (1000)*	130
Blade Mail (2200)*	130
Ethereal Blade (4900)*	130
Eul's Scepter of Divinity (2700)*	130
Force Staff (2350)*	130
Manta Style (5050)*	130
Ultimate Orb (2100)*	130
Drum of Endurance (1725)*	117
Power Treads (1400)**	104
Ghost Scepter (1600)*	91
Diffusal Blade (3300)*	78/130
Robe of the Magi (450)*	78
Null Talisman (480)*	78
Oblivion Staff (1675)*	78
Refresher Orb (5300)*	78
Mekansm (2306)*	65
Mantle of Intelligence (150)*	39
Bracer (525)*	39
Wraith Band (485)*	39
Magic Wand (509)*	39
Ring of Aquila (985)*	39
Buckler (803)*	26
Circlet (185)*	26
Headdress (603)*	26
Iron Branch (53)*	13

*Item provides mana boost exclusively via intelligence boost.
**Power Treads provides mana boost solely via intelligence boost when Intelligence is selected.

List of Items that Grant Mana Regeneration

Item	Bonus Mana Regeneration
Bloodstone (5050)	200% + 1 per charge
Refresher Orb (5300)	200% (on top of 0.24)
Scythe of Vyse (5675)	150% (on top of 1.4)
Orchid Malevolence (4125)	150% (on top of 1)
Linken's Sphere (5175)	150% (on top of 0.6)
Eul's Scepter of Divinity (2700)	150% (on top of 0.4)
Battle Fury (4350)	150%
Perseverance (1750)	125%
Soul Booster (3300)	100%
Void Stone (875)	100%
Oblivion Staff (1675)	75% (on top of 0.24)
Medallion of Courage (1075)	50%
Urn of Shadows (875)	50%
Soul Ring (800)	50%
Sage's Mask (325)	50%
Shiva's Guard (4700)*	1.2
Eye of Skadi (5675)*	1
Mystic Staff (2700)*	1
Rod of Atos (3100)*	1
Vladmir's Offering (2050)	0.8 (Aura)
Ring of Aquila (985)	0.65 (Aura) + 0.12
Ring of Basilius (500)	0.65 (Aura)
Necronomicon (2700)*	0.60/0.84/0.96
Dagon (2780)*	0.52/0.60/0.68/0.76/0.84
Veil of Discord (2650)*	0.48
Staff of Wizardry (1000)*	0.4
Aghanim's Scepter (4200)*	0.4
Blade Mail (2200)*	0.4
Ethereal Blade (4900)*	0.4
Force Staff (2350)*	0.4
Manta Style (5050)*	0.4
Ultimate Orb (2100)*	0.4
Drum of Endurance (1725)*	0.36
Power Treads (1400)**	0.32
Ghost Scepter (1600)*	0.28
Diffusal Blade (3300)*	0.24/0.40
Robe of the Magi (450)*	0.24
Null Talisman (480)*	0.24
Mekansm (2306)*	0.2
Mantle of Intelligence (150)*	0.12
Bracer (525)*	0.12
Wraith Band (485)*	0.12
Magic Wand (509)*	0.12
Buckler (803)*	0.08
Circlet (185)*	0.08
Headdress (603)*	0.08
Iron Branch (53)*	0.04
Clarity (50)	100 Mana over 30 seconds (1 Charge)
Bottle (600)	70 Mana over 3 seconds (3 Charges when full)

*Item provides mana regeneration boost exclusively via intelligence boost.
**Power Treads provides mana regeneration boost solely via intelligence boost when Intelligence is selected.