Spell damage

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Spell damage
 
 
Illusory Orb icon.png

Spell damage is all damage which is not dealt by physical attacks. This includes all spells which deal magical, physical or pure damage, as well as all items with abilities that deal damage. Even the damage dealt by attack modifiers counts as spell damage, as long as the effect deals its damage in a separate instance from the attack damage.

Magic spell damage is influenced by magic resistance, physical spell damage is influenced by armor and pure damage is not affected by either. All three underlie damage manipulation.

Sources of spell damage[edit]

Spell amplification[edit]

Spell damage can be directly amplified. Each point of Intelligence attribute symbol.png Intelligence increases a hero's spell damage by 0.07%, which equates to 1% spell damage for every 15 points of intelligence. Spell damage amplification of multiple sources stacks additively. The amplification does not only affect spell damage dealt against enemies, it also causes damage afflicted to allies or the own unit to get amplified.

Spell amplification granting talents[edit]

The following heroes have a talent that grants them spell damage amplification.

Bonus Level 10 Level 15 Level 20 Level 25
Left Right Left Right Left Right Left Right
Spell damage amplification
  • Ancient Apparition minimap icon.png +10%
  • Jakiro minimap icon.png +8%
  • Phoenix minimap icon.png +8%
  • Batrider minimap icon.png +6%
  • Nyx Assassin minimap icon.png +8%
  • Shadow Fiend minimap icon.png +8%
  • Tinker minimap icon.png +8%
  • Timbersaw minimap icon.png +10%
  • Grimstroke minimap icon.png +12%
  • Puck minimap icon.png +15%
  • Ember Spirit minimap icon.png +10%
  • Mirana minimap icon.png +12%
  • Lina minimap icon.png +14%
  • Earth Spirit minimap icon.png +15%

Besides these, the following heroes have other specific spell amplification talents

Spell damage amplification

Spell amplification granting items[edit]

Many items grant their owners a spell amplification bonus, either by increasing their intelligence, or by just giving them a direct bonus. The effects are limited to the item's owner, which must have the item equipped.

Spell damage increasing items (One value point equals 1% spell damage amplification)
Item Value Item cost Cost per value point
Aghanim's Scepter icon.png Aghanim's Scepter 0.7 4200 6000
Blade Mail icon.png Blade Mail 0.7 2200 3142.86
Bloodthorn icon.png Bloodthorn 1.75 7205 4117.14
Bracer icon.png Bracer 0.21 515 2452.38
Buckler icon.png Buckler 0.14 800 5714.29
Circlet icon.png Circlet 0.14 165 1178.57
Crimson Guard icon.png Crimson Guard 0.14 3700 26428.57
Crown icon.png Crown 0.28 450 1607.14
Dagon 1 icon.png Dagon 1 1.26 2700 2142.86
Dagon 2 icon.png Dagon 2 1.47 3950 2687.07
Dagon 3 icon.png Dagon 3 1.68 5200 3095.24
Dagon 4 icon.png Dagon 4 1.89 6450 3412.7
Dagon 5 icon.png Dagon 5 2.1 7700 3666.67
Diffusal Blade 1 icon.png Diffusal Blade 0.7 3150 4500
Drum of Endurance icon.png Drum of Endurance 0.42 1625 3869.05
Echo Sabre icon.png Echo Sabre 0.7 2650 3785.71
Ethereal Blade icon.png Ethereal Blade 0.7 4700 6714.29
Eul's Scepter of Divinity icon.png Eul's Scepter of Divinity 0.7 2750 3928.57
Eye of Skadi icon.png Eye of Skadi 1.75 5500 3142.86
Force Staff icon.png Force Staff 0.7 2250 3214.29
Ghost Scepter icon.png Ghost Scepter 0.35 1500 4285.71
Guardian Greaves icon.png Guardian Greaves 0.35 5475 15642.86
Headdress icon.png Headdress 0.14 525 3750
Helm of the Dominator icon.png Helm of the Dominator 0.14 2175 15535.71
Hurricane Pike icon.png Hurricane Pike 0.91 4600 5054.95
Iron Branch icon.png Iron Branch 0.07 50 714.29
Kaya icon.png Kaya 9.12 2050 224.78
Kaya and Sange icon.png Kaya and Sange 13.12 4100 312.5
Linken's Sphere icon.png Linken's Sphere 0.91 5050 5549.45
Magic Wand icon.png Magic Wand 0.21 450 2142.86
Manta Style icon.png Manta Style 0.7 4700 6714.29
Mantle of Intelligence icon.png Mantle of Intelligence 0.21 135 642.86
Mekansm icon.png Mekansm 0.35 2275 6500
Meteor Hammer icon.png Meteor Hammer 0.84 2625 3125
Mystic Staff icon.png Mystic Staff 1.75 2700 1542.86
Null Talisman icon.png Null Talisman 3.42 515 150.58
Oblivion Staff icon.png Oblivion Staff 0.7 1650 2357.14
Octarine Core icon.png Octarine Core 1.75 5900 3371.43
Orchid Malevolence icon.png Orchid Malevolence 1.75 4075 2328.57
Pipe of Insight icon.png Pipe of Insight 0.14 3025 21607.14
Power Treads (Intelligence) icon.png Power Treads (Intelligence) 0.7 1450 2071.43
Robe of the Magi icon.png Robe of the Magi 0.42 450 1071.43
Rod of Atos icon.png Rod of Atos 1.4 2750 1964.29
Scythe of Vyse icon.png Scythe of Vyse 2.45 5700 2326.53
Shiva's Guard icon.png Shiva's Guard 2.1 4750 2261.9
Silver Edge icon.png Silver Edge 1.05 5550 5285.71
Solar Crest icon.png Solar Crest 0.7 3875 5535.71
Spirit Vessel icon.png Spirit Vessel 0.14 2975 21250
Staff of Wizardry icon.png Staff of Wizardry 0.7 1000 1428.57
Ultimate Orb icon.png Ultimate Orb 0.7 2150 3071.43
Urn of Shadows icon.png Urn of Shadows 0.14 875 6250
Veil of Discord icon.png Veil of Discord 1.05 2050 1952.38
Wraith Band icon.png Wraith Band 0.21 515 2452.38
Yasha and Kaya icon.png Yasha and Kaya 13.12 4100 312.5
Values may include portions from actives or auras.

Unaffected by amplification[edit]

There are certain cases of abilities that ignore spell amplification. It is important to note that those spells cannot spell lifesteal either.

In general abilities related to health manipulation (instantly killing effect, health cost, delayed damage) and regular attacks (cleave, instant attacks) do not benefit from spell amplification. The exceptions to this rule are splash, Tree Grab, and Psi Blades which are still amplified.

Damage dealt by a summon is affected by the summon's spell amplification, not by the summoner's spell amplification.

Version history[edit]

Version
Description
  • Damage return from Blade Mail is no longer increased by Spell Amplification
  • Moon Glaives no longer gets boosted by Spell Amplification.
  • Cleave no longer gets boosted by Spell Amplification.
  • Spell Lifesteal does not trigger heal for things that don't receive spell amplification (Moon Glaives, Cleave).

See also[edit]