Arc Warden/Counters

Bad against...

 * Anti-Mage has higher mobility from, allowing him to deal with the while it is split-pushing.
 * Arc Warden has an above-average mana pool but little mana regeneration, which Anti-Mage can take advantage of with and.
 * Arc Warden tends to build . With, Anti-Mage can easily deal with the Necronomicon's summons, and Anti-Mage will take minimal damage from due to.
 * Magnetic Field is useless against melee heroes. So Anti-Mage still can attack without miss.
 * Manta Style cancels Flux.


 * Bristleback(Passive) works frequently while he escapes from army of Arc Warden.
 * If Bristleback initiating, Arc Warden who has few armor, mobility helps Bristleback's Warpath and Quill Spray stacks stable.


 * Flux is useless against Meepo who always stick with his Divided We Stand.
 * Without Black King Bar, Earthbind and Poof finish Arc Warden before he call Tempest Double.
 * Magnetic Field is useless against melee heroes. So Meepo still can attack without miss.
 * Meepo has high magical resistance so he can Poof to Necronomicon and Tempest Double without hurts himself much. Because he takes little damage from Last Will.


 * Song of Siren stops his acting and her illusions can push better than him because Mirror Image has longer duration.
 * Arc Warden hasn't born to build radiance which useful for illusion. While he doesn't have Black King Bar. Naga still has more advantage.


 * His Smokescreen prevents Arc Warden for initiating or helping his team.
 * Trick of the trade is wider enough for damages low mobility hero.
 * However, if Arc Warden is outsmarted, Necronomicon(s) will reveals Riki without spends Sentry Ward, Dust of appearance and Gem of True Sight. He'll be target easily.


 * Diffusal Blade breaks Arc Warden mana fast. With Juxtapose, Zet is piece of cake for him.
 * Doppelganger purges Flux.

Items

 * Diffusal Blade cut Arc Warden mana so he and his double lessen ability in fighting.
 * Abyssal Blade.
 * Monkey King Bar.
 * Linken's Sphere making Arc Warden item spends is wasted.
 * Black King Bar makes magical Arc Warden useless.
 * Lotus Orb reflects all his item using back to himself.

Good against...

 * As Necronomicon is base item, Sand King can't hide in his sandstorm and easily kill with Flux, Spark Wraith and Tempest Double.
 * Otherway is he has reflected from double Zet with Blademail while he cast Epicenter which kill Necronomicon Warrior and give Last Will to Sand King if he doesn't have Black King Bar.
 * Black King Bar from Arc Warden makes all Sand King's magical damage meaningless.


 * Necronomicon reveals invisible Bounty Hunter and kill him fast, with low HP base of him.
 * If Arc Warden and Bounty Hunter all has same item, Bounty Hunter die first. Linken's Sphere and Black King Bar can't help him both.


 * Tempest Double can break Chain Frost combo and Necronomicon Warrior's Last Will reflect damage back to Lich.


 * His Rearm never faster than Tempest Double. If Arc Warden and Tinker all has same item, Tinker die first. Linken's Sphere can't help him.
 * Blademail can reflect March of the Machines, especially with Tempest Double.
 * Last Will from Necronomicon Warrior is good pair with Blademail to kill Tinker without attacking, but make sure that Tinker doesn't have Black King Bar or Scepter of Divinity to negates damage.


 * Ancient Apparition travels alone often to get a good and has very few defences against summons, like your Tempest double or Necronomicon, making him a juicy target.
 * is very effective against heroes traveling alone.
 * The high split-push potential of Arc Warden can punish Ancient Apparition very heavily, since he is not built to push waves or defend against summons.


 * Necronomicon reveals her while Meld.
 * Flux makes waste of Refraction until she has Black King Bar or Manta Style.
 * Spark Wraith bully Melding Templar Assassin.


 * If Arc Warden makes Diffusal Blade, he will be able to purge Repel and Guardian Angel for all game thanks to his copy able to have infinite Diffusal charges.


 * Necronomicon reveals Mirana's team while Moonlight Shadow.
 * Mirana who hasn't build armor item much can't last stand with Arc Warden.
 * Mirana's Scepter Starstorm can accidentally kill Necronomicon Warrior that leads to her death because she hasn't build Black King Bar.
 * Arc Warden can use his summon to prevents Sacred Arrow to himself or his allies.
 * Magnetic Field can dodge Mirana's attack.

Others

 * Bane is single target hero
 * Techies's Land Mine may useful until Arc Warden has level 6, After that Techies's bombs are useless for defending since he has Necronomicon for advance scouting before his team pushing.
 * Clinkz is other hero who has single target and love to solo. He may use Death Pact for Necronomicon but if Arc Warden has other one, Clinkz will killed by Flux and many Spark Wraith.
 * Crystal Maiden is same as Sand King, Freezing Field can be kill herself if 2 of Necronomicon Warrior die or Arc Warden released 2 Blademails. Even if she has Black King Bar. He can dodges damages from Black King Bar too.
 * Nyx Assassin is other solo hero who has single target. His Vendetta maybe useful but Necronomicon will reveals him if he still invisible. And more, Since Spike Carapace can stuns back from each source. Arc Warden can't die from Nyx's reflection.
 * Night Stalker is other hero who has solo target.
 * Earthshaker is same as Sand King, he may die with his Echo Slam if he surrounded with Necronomicon Warrior and Blademailed of 2 Arc Warden
 * Queen of Pain's Sonic Wave is same as Sand King's Epicenter.

Works well with...

 * Arc Warden has double the benefit from Drow Rangers precision aura, therefore giving him a huge boost of damage.


 * Tempest Double help Terrorblade Conjure Image to push the lane, therefore they have the ability to destroy towers easier.


 * Flux helps Pudge hook easier and Spark Wraith help reduce HP so Pudge can gain Flesh Heap.


 * Miranas' arrow, can hold someone still while Arc Warden nukes him down.


 * Reason


 * Putting on Arc Warden and his double is very effective early-game. Works well with.
 * and also have some synergy.  also applies a 100% slow, in case Flux is muted by allies or neutrals.
 * does somewhat buff the heavy magic damage coming from Spark Wraiths and Flux. Two fluxes cast by both clones do stack, increasing the damage.
 * A global can certainly help any hero with pick-off potential, like Arc Warden.

Others

 * Any Disable or Nuker Carry heroes - Sven - Slark  - Lina  - Wraith King   - Phantom Assassin (Even in game she isn't both type but her dagger it's kind of disable)

List of heroes that counter Arc Warden, and list of heroes that work well with Arc Warden.