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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

How mana regeneration works.

All heroes have a base Mana Regeneration of +0.01 Mana/sec
Each point of Intelligence increases a Hero's base Mana Regeneration by 0.05
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

Max Mana Sources

Items

Items that provide +Max Mana bonuses.

Item	maxMana	manaFromINT	totalMana
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
Mighty Blade	0	+130	130
Shrunken Head	0	+130	130
Steamboots (Intelligence)	0	+130	130

Abilities

Abilities that provide +Max Mana bonuses.

heroItem	Source	Target	maxMana	Duration	Notes
Glacius	Chilling Presence	Aura (Ally Units)	25/50/75/100	N/A	Bonus is removed while Glacius is dead

Mana Regeneration Sources

Items

Items that provide mana regeneration.

Item	manaRegen	Notes
Manatube	100% Mana Regeneration
Perpetual Cogwheel	75% Mana Regeneration
Spellshards	75% Mana Regeneration
Ring of Sorcery	50% Mana Regeneration	Also provides +250 Max Mana
Sorcery Boots	50% Mana Regeneration	Also provides +250 Max Mana
Master's Legacy	50% Mana Regeneration	Also provides +150 Max Mana
Staff of the Master	50% Mana Regeneration	Also provides +150 Max Mana
Apprentice's Robe	50% Mana Regeneration
Neophyte's Book	50% Mana Regeneration
Frostfield Plate	2.5 Mana/sec	Also provides +390 Max Mana from INT
Jade Spire	2.5 Mana/sec	Also provides +390 Max Mana from INT
Lightbrand	1.5 Mana/sec
Frozen Light	1.5 Mana/sec
Searing Light	1.5 Mana/sec

Abilities

Abilities that provide mana regeneration.

heroItem	Source	Target	manaRegen	Duration	Notes
Bottle	Activation	Self	41.6666	3 seconds	Dispels on damage taken
Glacius	Chilling Presence	Aura (Ally Heroes)	0.5/1/1.5/2
Icon of the Goddess	Passive	Self	20	15 seconds	Applies Gift of the Goddess whenever user gains charges
Jade Spire	Aura	Ally Units	2		Does not stack with Ring of the Teacher and Nome's Wisdom
Jade Spire	Activation	Self	500%	4 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		Applies after not taking damage for 5 seconds; Removed when taking damage from heroes or towers
Nome's Wisdom	Aura	Ally Units	0.75		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
Warchief	Warcry	Ally Heroes (Aura)	10/20/30	12 seconds
Whispering Helm	Activation	Non-hero Unit	1		Permanently applies to Dominated creep

Mana Reduction

Effects that reduce mana or mana regeneration.

heroItem	Source	Effect	Notes	Target
Nullfire Blade	Passive	Burns 40/60/80 Mana per attack	Also deals Physical damage equal to 50% of Mana burnt
Vagabond	Mystic Orb's Burn	Burns 100 Mana	Deals 100% of Mana burnt in Magic Damage	Enemy Unit
Witch Slayer	Power Drain	Drains 25/50/75/100 Mana per second		Enemy Unit

Mana Restorers

Items and abilities that restore mana instantly or over time.

Mana Steal

Abilities that steal mana from enemies.

Hero	Ability	Target	Amount	Notes
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

Mana Drain

Abilities that drain mana from enemies over time.

Hero	Ability	Target	Amount	Notes
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