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%
  • Shadow Shaman minimap icon.png +10%
  • Jakiro minimap icon.png +8%
  • Phoenix minimap icon.png +8%
  • Tinker minimap icon.png +10%
  • Batrider minimap icon.png +6%
  • Nyx Assassin minimap icon.png +8%
  • Shadow Fiend minimap icon.png +8%
  • Timbersaw minimap icon.png +10%
  • Puck minimap icon.png +15%
  • Grimstroke minimap icon.png +20%
  • Bane minimap icon.png +8%
  • Ember Spirit minimap icon.png +10%
  • Mirana minimap icon.png +12%
  • Lina minimap icon.png +14%
  • Void Spirit minimap icon.png +15%
  • Earth Spirit minimap icon.png +20%

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
Arcane Ring icon.png Arcane Ring 0.7 N/A N/A
Assault Cuirass icon.png Assault Cuirass 0.35 5150 14714.29
Blade Mail icon.png Blade Mail 0.7 2000 2857.14
Bloodstone icon.png Bloodstone 9.12 5250 575.66
Bloodthorn icon.png Bloodthorn 1.75 6925 3957.14
Book of the Dead icon.png Book of the Dead 2.1 N/A N/A
Bracer icon.png Bracer 0.21 510 2428.57
Circlet icon.png Circlet 0.14 155 1107.14
Clumsy Net icon.png Clumsy Net 0.42 N/A N/A
Crimson Guard icon.png Crimson Guard 0.21 3800 18095.24
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 0.28 1900 6785.71
Echo Sabre icon.png Echo Sabre 0.7 2575 3678.57
Essence Ring icon.png Essence Ring 0.42 N/A N/A
Ethereal Blade icon.png Ethereal Blade 0.7 4500 6428.57
Eul's Scepter of Divinity icon.png Eul's Scepter of Divinity 0.7 2725 3892.86
Eye of Skadi icon.png Eye of Skadi 1.75 5500 3142.86
Fallen Sky icon.png Fallen Sky 1.4 N/A N/A
Force Staff icon.png Force Staff 0.7 2225 3178.57
Ghost Scepter icon.png Ghost Scepter 0.35 1500 4285.71
Guardian Greaves icon.png Guardian Greaves 0.35 4950 14142.86
Helm of the Dominator icon.png Helm of the Dominator 0.49 2125 4336.73
Holy Locket icon.png Holy Locket 0.21 2450 11666.67
Hurricane Pike icon.png Hurricane Pike 0.91 4575 5027.47
Iron Branch icon.png Iron Branch 0.07 50 714.29
Ironwood Tree icon.png Ironwood Tree 0.42 N/A N/A
Kaya icon.png Kaya 9.12 2050 224.78
Kaya and Sange icon.png Kaya and Sange 15.12 4100 271.16
Linken's Sphere icon.png Linken's Sphere 0.98 5050 5153.06
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 0.21 145 690.48
Mekansm icon.png Mekansm 0.28 1875 6696.43
Meteor Hammer icon.png Meteor Hammer 0.84 2500 2976.19
Mirror Shield icon.png Mirror Shield 1.4 N/A N/A
Mystic Staff icon.png Mystic Staff 1.75 2700 1542.86
Nether Shawl icon.png Nether Shawl 8 N/A N/A
Null Talisman icon.png Null Talisman 3.42 510 149.12
Oblivion Staff icon.png Oblivion Staff 0.7 1575 2250
Ocean Heart icon.png Ocean Heart 0.35 N/A N/A
Octarine Core icon.png Octarine Core 1.75 5900 3371.43
Orchid Malevolence icon.png Orchid Malevolence 1.75 3925 2242.86
Power Treads (Intelligence) icon.png Power Treads (Intelligence) 0.7 1350 1928.57
Ring of Aquila (Active) icon.png Ring of Aquila 0.21 N/A N/A
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
Spell Prism icon.png Spell Prism 0.84 N/A N/A
Spirit Vessel icon.png Spirit Vessel 0.14 2940 21000
Staff of Wizardry icon.png Staff of Wizardry 0.7 1000 1428.57
Timeless Relic icon.png Timeless Relic 15 N/A N/A
Trident icon.png Trident 32.1 6150 191.59
Ultimate Orb icon.png Ultimate Orb 0.7 2150 3071.43
Urn of Shadows icon.png Urn of Shadows 0.14 840 6000
Vambrace (Agility) icon.png Vambrace (Agility) 0.35 N/A N/A
Vambrace (Intelligence) icon.png Vambrace (Intelligence) 6.7 N/A N/A
Vambrace (Strength) icon.png Vambrace (Strength) 0.35 N/A N/A
Veil of Discord icon.png Veil of Discord 0.63 1975 3134.92
Vladmir's Offering icon.png Vladmir's Offering 0.35 2200 6285.71
Wraith Band icon.png Wraith Band 0.21 510 2428.57
Yasha and Kaya icon.png Yasha and Kaya 15.12 4100 271.16
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.

Not affected by 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]