
Mars in Dota 2: counters, win rate and common mistakes
Mars — Strength, melee; roles: Carry, Initiator, Disabler, Durable. Public match win rate — 47.7%. In short: Mars is strong against Dawnbreaker, Medusa, Earthshaker but suffers against Treant Protector, Shadow Demon, Phoenix.
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Mars win rate by rank
public matches, OpenDota data · scale 40–60%Herald47.0%
Guardian47.6%
Crusader48.4%
Archon48.1%
Legend47.3%
Ancient47.5%
Divine47.6%
Immortal—
Mars is strong against
hover a hero for a summaryWho counters Mars
How to play Mars against counters
items, your spells and what to fear — per enemy
vs Treant ProtectorTreant sustains his team with heals and Living Armor; cut healing, don't clump for Overgrowth, and pin him to trees with Spear.40.8%
What to build against it

Spirit VesselReduces healing from Living Armor and Leech Seed pulses that Treant uses to sustain fights.

Black King BarProtects from Leech Seed root-disarm and Nature's Grasp slow, but not from Overgrowth.

Dust of AppearanceReveals Nature's Guise invisibility when Treant hides in the trees.
How to use the spells of Mars

Spear of MarsTreant lives near trees — aim Spear to impale him on a tree for a guaranteed stun.

Arena Of BloodCast Arena after his Overgrowth is used so he can't catch your whole team inside.

God's RebukeLiving Armor weakens per hit — strip it with attacks first, then Rebuke the target.
Watch out for Treant Protector

OvergrowthPierces BKB and stops blink and attacks — spread out and engage after he casts it.

Leech SeedMelee root and disarm — avoid standing next to Treant in a pointless 1v1.
vs Shadow DemonShadow Demon saves allies from Arena with Disruption and punishes groups with Disseminate; get spell block and don't clump.41.3%
What to build against it

Linken's SphereBlocks the unit-target Disruption SD uses to cancel your engage and make illusions.

Lotus OrbReflects Disruption and Demonic Purge back onto Shadow Demon.

Black King BarProtects from Disruption and Shadow Poison damage in fights.
How to use the spells of Mars

Spear of MarsSD is fragile — Spear him first before he can Disrupt an ally.

Arena Of BloodWait for SD to use Disruption, or trap SD himself inside the Arena.

God's RebukeDisruption illusions hit hard — clear them with Rebuke along with heroes.
Watch out for Shadow Demon

DisseminateDamage spreads to everyone nearby — if it's on you, step away from allies.

Demonic PurgePierces BKB, purges buffs and slows heavily — don't waste buffs while it's on you.
vs PhoenixPhoenix wins long fights with healing and Supernova; cut healing and lock the sun in Arena to break it fast.41.7%
What to build against it

Black King BarBlocks Fire Spirits attack-speed slow, Sun Ray and Icarus Dive, but not Supernova's stun.

Spirit VesselCuts Sun Ray healing and helps finish Phoenix.

Pipe of InsightAbsorbs Phoenix's magic damage for your whole team.
How to use the spells of Mars

Arena Of BloodCast Arena around the Supernova sun: enemies can't come help while you hit it.

Spear of MarsPhoenix is slow during Sun Ray — Spear him into a wall or tree.

BulwarkTurn off Bulwark near the sun — you can't attack while it's active.
Watch out for Phoenix

SupernovaIts stun pierces BKB — hit the sun immediately or leave the radius.

Fire SpiritsGreatly reduces attack speed — deal damage via God's Rebuke instead.
vs Ember SpiritEmber is slippery with Fire Remnant; wait for him to spend remnants, then lock him down with silence and BKB.42.6%
What to build against it

Black King BarSaves you from Searing Chains and remnant magic damage, but not Sleight of Fist.

Orchid MalevolenceSilence stops Ember from activating Fire Remnant to escape.

Blade MailReturns damage from Sleight of Fist and his attacks when he jumps you.
How to use the spells of Mars

BulwarkSleight of Fist and his attacks are physical — face him so Bulwark blocks damage.

Spear of MarsThrow Spear right after he lands from a remnant, when he can't immediately dash.

Arena Of BloodCast Arena after he burns his remnants, otherwise he escapes easily.
Watch out for Ember Spirit

Searing ChainsChains root you near him — don't stand close after his Sleight.

Fire RemnantRemnants are visible in advance — track where they go and aim Spear there.
vs Monkey KingMK is a physical core; block his hits, knock him out of Wukong's Command and punish his jumps.42.6%
What to build against it

Heaven's HalberdDisarm shuts down his Jingu Mastery charged attacks.

Blade MailReturns damage from his attacks and Wukong's Command soldiers.

Black King BarProtects from Boundless Strike stun and Primal Spring slow.
How to use the spells of Mars

God's RebukeKnock MK out of Wukong's Command — if he leaves the area, soldiers disperse.

BulwarkKeep MK in front: Bulwark reduces his physical hits and soldier attacks.

Spear of MarsUse Spear to push him out of his ult or pin him before he escapes to a tree.
Watch out for Monkey King

Wukong's CommandSoldiers only hit heroes — leave the circle or knock him out of it.

Boundless StrikeLine stun — don't stand in a line with him and your allies.
Tips are based on ability descriptions and matchup stats — a guideline, not a rule.
Mars builds by role
purchase popularity on the hero, split by item type; hover an itemStarting items
Iron Branch30%
Gauntlets of Strength28%
Tango13%
Quelling Blade9%
Circlet6%
Magic Stick5%
Faerie Fire4%Early game
Bracer24%
Boots of Speed23%
Chainmail19%
Soul Ring18%
Phase Boots15%
Morbid Mask1%
Blink Dagger0%Mid game
Blink Dagger23%
Mithril Hammer14%
Aghanim's Shard14%
Ogre Axe11%
Phase Boots8%
Staff of Wizardry7%
Black King Bar4%Late game
Black King Bar21%
Mystic Staff14%
Scythe of Vyse12%
Reaver6%
Aghanim's Scepter4%
Refresher Orb4%
Shiva's Guard3%Situational items on Mars: when to buy
red — heroes that counter Mars
Linken's SphereBlocks single-target disables and ultimatesEspecially vs heroes that counter Mars: Doom

Orchid MalevolenceSilence for slippery, spell-based escape heroesEspecially vs heroes that counter Mars: Ember Spirit

Black King BarAgainst heavy disables and magic damage

Monkey King BarAgainst evasion: pierces Evasion and Butterfly

Silver EdgeDisables passives (Break)

Manta StyleDispels silences and roots

Diffusal BladeBurns mana of mana-dependent heroes

Heaven's HalberdDisarms right-click carries

Blade MailPunishes heroes that commit damage into you
Why players lose on Mars
from matches analyzed on DotaLeak: 0Not enough analyzed Mars matches yet. Analyze yours — it will count.
FAQ
Who counters Mars?
Mars loses most often against Treant Protector, Shadow Demon, Phoenix. What to build and how to play vs them →
Who is Mars good against?
Best matchups: Dawnbreaker, Medusa, Earthshaker.
What is Mars's win rate?
In public matches — 47.7%. It varies by rank, see the table above.
What to build on Mars?
In the mid game players most often buy Blink Dagger, Mithril Hammer, Aghanim's Shard. Situational items depend on the enemy — see above.