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Mage Slayer is an item purchasable at the Base Shop, under Artifacts.

Components required from the Base Shop
Mage Slayer
Mage Slayer icon.png
Forged by a secret order in The Third Age of Praxa'cia to fell the False King.
Cost 2400 Gold (400)
Sell Value Full price refunded within 10s. 1200 Gold
Passive ? Mage Slayer
Bonus ? +10 Intelligence
+2 Mana Regeneration
+20% Magic Resistance
+20 Attack Damage
+20 Attack Speed
Shareable No
Disassemble No
Usage Alert ? No
Bloodthorn (6800)
Mage Slayer (2400)
Cloak (500)
Oblivion Staff (1500)
Recipe (400)

Additional Information[]

  • Stacks multiplicatively with other sources of magic resistance.
    • Increases most heroes' total magic resistance to 40%.


Mage Slayer
Cannot be used by illusions. Does not pierce spell immunity.
Places a debuff when you attack enemies, causing them to do 35% less spell damage for 6 seconds.
Spell Damage Reduction: 35%
Duration: 6
Modifiers [?]


  • Successive attacks on the same target do not stack the debuff, but refresh the duration instead.
    • Mage Slayer on Bloodthorn icon.png Bloodthorn uses the same modifier, so they do not stack with each other either.
  • The attacks first apply the debuff, then their own damage.
  • The debuff applies generic outgoing damage reduction on enemies within range. Stacks additively with other sources of generic outgoing damage manipulation.

Recommended Heroes[]

Generally heroes with abilities that affects multiple targets at once benefit from wielding this item:

Ember Spirit icon.png
Ember Spirit
Monkey King icon.png
Monkey King
Pangolier icon.png
Phantom Lancer icon.png
Phantom Lancer
Riki icon.png


  • Generally used against spell based heroes or lineups when playing as a hero reliant on auto-attacks or one that uses skills that use attack modifiers.
  • The hidden power of Mage Slayer may be the fact it is the only magic damage reduction upgrade that gives raw damage per second increase to auto-attacks. Build into it from a Cloak if you feel you do not need the utility or support of a Glimmer Cape icon.png Glimmer Cape or the regeneration of a Hood of Defiance icon.png Hood of Defiance.
  • Remember that the debuff reduces all damage types, not just Magical damage. This makes it a great way to reduce the damage output of heroes that mostly use Pure damage or, more situationally, Physical damage via spells. Some common examples are Timbersaw minimap icon.png Timbersaw, Outworld Destroyer minimap icon.png Outworld Destroyer, Silencer minimap icon.png Silencer, and Bloodseeker minimap icon.png Bloodseeker for Pure damage spells, and Bristleback minimap icon.png Bristleback and Dazzle minimap icon.png Dazzle for Physical damage spells.

Recent Changes[]

    recipe and stats.
Mage Slayer icon.png Mage Slayer
Recipe: Cloak icon.png Cloak (500 Gold), Blade of Alacrity icon.png Blade of Alacrity (1000 Gold), Claymore icon.png Claymore (1350 Gold), Default recipe icon.png Recipe (400 Gold)
Total cost: 3250 Gold
Agility bonus: 20
Magic resistance bonus: 20%
Attack damage bonus: 20
Mage Slayer icon.png Mage Slayer
Recipe: Cloak icon.png Cloak (500 Gold), Oblivion Staff icon.png Oblivion Staff (1500 Gold), Default recipe icon.png Recipe (400 Gold)
Total cost: 2400 Gold
Intelligence bonus: 10
Mana regeneration bonus: 2
Magic resistance bonus: 20%
Attack damage bonus: 20
Attack speed bonus: 15