Mage Slayer – Dota 2 Guide, Stats & Hero Matchups [Patch 7.38c]

Upgraded Item | Armaments

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Forged by a secret order in The Third Age of Praxa'cia to fell the False King.

Is your hero's secret weapon against those pesky spellcasters, it's a fantastic item that empowers your hero to take down magical foes with style!

Base Combat Stats

+ 20% Magic Resistance

+ 30 Attack Speed

+ 5 Health Regeneration

+ 2 Mana Regeneration

+ 8 Damage

Recipe

Abilities

Passive: Mage Slayer

Places a debuff when you attack enemies, dealing 20 damage per second and causing them to do 40% less spell damage for 3 seconds.

Additional Insights

Dispellable by <item_manta></item_manta>Applies debuff first then damage on attack
Well, it reduces the spell damage of enemies hit by your hero's attacks in a form of debuff which could be crucial against heroes that deals with constant magical DPS like Leshrac.

Statistics

The statistics below shows the percentage of hero builds which contain Mage Slayer as a core, common or situational item for each role. These statistics are based on our hero guides.

Itemization Strategy

Usually built by cores against cores who dish out a lot of magic damage, keeps them very resistant to magic and weakens their foe easily, Became a main item for most heroes in the offlane and mid as it provides significant DPS and resistance for ganks in the mid game.

Heroes with Mage Slayer as Core Item

A core item that provides some much needed mana sustain and boosts your damage output through Anchor Smash with the extra attack on cast. Also provides magic resistance to make you much more tanky in teamfights.

A core item that increases your damage output while providing some much needed tankiness and mana regen. Also reduces the spell damage of enemy heroes you attack with right clicks.

A core item to have more tankiness and damage to snowball in the game by getting kills and joining fights. Works well when the enemy team has multiple heroes who rely on their spells to deal most of their damage.

Heroes countered by Mage Slayer

Reduces the damage dealt by Axe from ALL his spells, Counter Helix included and hinders his his burst potential greatly. Also cancels his Blink Dagger with the damage over time effect.

Provides magic resistance and significantly reduces the damage dealt by Batrider's spells. Also cancels his Blink Dagger with damage over time on right clicks.

Provides magic resistance and reduces the damage dealt by Death Prophet from all her spells to nullify her burst potential.

Provides magic resistance and reduces the damage dealt by Earth Spirit from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Ember Spirit from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Enigma from all his spells. Also cancels his Blink Dagger with damage over time on right clicks.

Provides magic resistance and reduces the damage dealt by Huskar from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Invoker from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Keeper of the Light from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Leshrac from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Lina from all her spells to nullify her burst potential.

Provides magic resistance and reduces the damage dealt by Morphling from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Muerta from her Pierce the Veil right clicks and spells.

Provides magic resistance and reduces the damage dealt by Necrophos from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Primal Beast from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Puck from all her spells to nullify her burst potential.

Provides magic resistance and reduces the damage dealt by Pudge from all his spells. Also cancels his Blink Dagger with damage over time on right clicks.

Provides magic resistance and reduces the damage dealt by Pugna from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Queen of Pain from all her spells to nullify her burst potential.

Ringmaster's kit is exclusively Magical damage, which makes Mageslayer great for mitigating his damage for both you and your teammates.

Provides magic resistance and reduces the damage dealt by Sand King from all his spells. Also cancels his Blink Dagger with damage over time on right clicks.

Provides magic resistance and reduces the damage dealt by Skywrath Mage from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Snapfire from all her spells to nullify her burst potential.

Provides magic resistance and reduces the damage dealt by Storm Spirit from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Techies from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Timbersaw from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Tinker from all his spells. Also cancels his Blink Dagger with damage over time on right clicks.

Provides magic resistance and reduces the damage dealt by Tiny from all his spells. Also cancels his Blink Dagger with damage over time on right clicks.

Provides magic resistance and reduces the damage dealt by Underlord from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Venomancer from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Viper from all his spells to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Visage from his Soul Assumption spam to nullify his burst potential.

Provides magic resistance and reduces the damage dealt by Zeus from all his spells to nullify his burst potential.

Trivia

It is said to be Forged by a secret order in The Third Age of Praxa'cia to fell the False King, but the community simply refers to it as Anti-Mage's weapon.