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Slardar icon.png
Strength attribute symbol.png
Agility attribute symbol.png
Intelligence attribute symbol.png
21 + 3.6
17 + 2.4
15 + 1.5
Level 0 1 15 25 30
Health 200 620 1620 2340 2700
Health regen 0.5 2.6 7.64 11.24 13.04
Mana 75 255 507 687 771
Mana regen 0 0.75 1.8 2.55 2.93
Armor 3 5.83 11.43 15.43 17.43
Att/sec 0.59 0.69 0.89 1.03 1.1
Damage 30‒38 51‒59 101‒109 137‒145 155‒163
Magic resistance 25%
▶️ Movement speed 300
▶️ Attack speed 100
Turn rate 0.5
Vision range 1800/800
Attack range 150
Projectile speed Instant
Attack animation 0.36+0.64
Base attack time 1.7
Damage block 8
Collision size 24
Gib type Default

Slardar, the Slithereen Guard, is a melee strength hero who uses brute force, low cooldown spells, and high physical strength to bring his enemies to their knees. He excels and thrives in close combat situations, and has high mobility, strong initiation and ganking abilities, and good synergy between his abilities. Guardian Sprint greatly increases Slardar's movement speed for a lengthy duration, and allows him to chase down heroes, and escape with ease. Guardian Sprint can be used to get right next to enemies so Slardar can use Slithereen Crush, which delivers an area of effect (AoE) stun to nearby enemies followed by a minor slow afterwards, all on a very low cooldown. This allows Slardar to take on multiple opponents simultaneously and deliver a potent initiation. Bash of the Deep serves as a strong steroid ability, occasionally locking enemies in place while Slardar whacks at them with impunity. Finally, his ultimate Corrosive Haze is a great armor reduction modifier and allows him to reveal an enemy for its duration, making Slardar very potent against tanks and invisible heroes alike. It will also increase the damage dealt by his Crush and Bash, since they are physical. Although a strength hero, he has a high physical damage output, and an agility gain and armor value which rivals that of most agility heroes, allowing him to carry quite well if the situation calls for it. Chasing enemies relentlessly, pummeling them into the ground, and reducing their armor to shreds, Slardar is a fearsome opponent to face.


Slardar minimap icon.pngSlardar, the Slithereen Guard
▶️ "I guard what slumbers in the deeps."
Slardar is a Slithereen, one of the Deep Ones, guardian of a vast network of sunken cities and the ancient riches buried within them. In the lightless gulf of the deepest ocean abysses, the Slithereen Guard patrols secret treasure rooms, ever vigilant against the subaqueous thieves sent into the deeps by covetous dryland sorcerers. He is utterly loyal, and his taciturn nature hides deep knowledge of the most secret places of the sea. He rises to the shallows in spite of the pain caused him by brightness, to commit reconnaissance, to make sure no one is conspiring against the depths, and sometimes in relentless pursuit of the rare few who manage to steal off with an item from the Sunken Treasury. Because he has spent his whole life at great pressure, under tremendous weight of the sea, Slardar the Slithereen Guard is a creature of immense power.


Guardian Sprint
Guardian Sprint icon.png
No Target
Slardar slithers ahead, moving significantly faster and passing through units. Slardar has unlocked max speed and grants movement speed while in the river.
Cast Animation: 0+0
River Movement Speed Bonus: 7%/19%/31%/43%
River Health Regen Bonus: 0 (Upgradable by Aghanim's Scepter. 35)
River Armor Bonus: 0 (Upgradable by Aghanim's Scepter. 12)
River Status Resistance Bonus: 0% (Upgradable by Aghanim's Scepter. 40%)
Active Movement Speed Bonus: 18%/26%/34%/42%
Active Duration: 10
Cooldown: 17
Mana: 25
Aghanim's upgrade: Provides additional HP Regen, Armor and Status Resistance while in a puddle or in the river.
Buff modifier_slardar_sprint_passive: Undispellable. Persists death.
Buff modifier_slardar_sprint_river: Dispellable with any dispel.
Buff modifier_slardar_sprint: Dispellable with any dispel.
As Slardar has made the transition from the Deeps, it has been necessary to use his powerful tail for sprinting instead of swimming.


  • Guardian Sprint does not interrupt Slardar's channeling spells upon cast.
  • Turns Slardar phased for the duration, allowing him to pass through other units and wards.
  • The river bonuses are applied when Slardar makes physical contact with the water of the river.
    • This means if he is moved out of it vertically, the bonuses are lost as well, until he lands back in the water.
    • The bonuses of the river do not linger at all.
  • Multiple instances of the river bonus do not stack.

Slithereen Crush
Slithereen Crush icon.png
No Target
Slams the ground, stunning and damaging nearby enemy land units. After the stun, the affected units are slowed.
Cast Animation: 0.35+0.6
Effect Radius: 350
Puddle Radius: 0 (Upgradable by Aghanim's Scepter. 600)
Damage: 80/140/200/260
Move Speed Slow: 20%/25%/30%/35%
Attack Speed Slow: 20/25/30/35
Stun Duration: 1
Slow Duration: 3/4/5/6
Puddle Duration: 0 (Upgradable by Aghanim's Scepter. 25)
Puddle Aura Linger Duration: 0 (Upgradable by Aghanim's Scepter. 0.5)
Cooldown: 8 (With talent: 4)
Mana: 80/95/105/115
Aghanim's upgrade: Whenever Slardar casts Slithereen Crush, he creates a puddle of water that is considered a river for movement and bonuses.
Does not pierce spell immunity. Slow persists if debuff was placed before spell immunity and when not dispelled.
Buff modifier_slardar_puddle_thinker: Undispellable. Persists death.
Buff modifier_slardar_puddle: Undispellable. Persists death.
Debuff modifier_slithereen_crush: Dispellable with any dispel.
Debuff modifier_stunned: Dispellable with strong dispels.
A swift crush of might and water breaks even the toughest of defenses.


  • The stun and slow are applied at the same time, so overall, the slow lasts for 4/5/6/7 seconds.
  • The crush first applies the debuffs, then the damage.
  • When upgraded, the puddles provide an aura which grants the caster the river bonuses.
    • Unlike the river, the puddles do not grant the bonuses to any other unit, not even the caster's illusions.
    • Also unlike the river, the river bonus from a puddle lingers for 0.5 seconds.
    • Multiple instances of the river bonus do not stack.

Bash of the Deep
Bash of the Deep icon.png
After 3 attacks, your next attack will bash the target.
Required Hits: 4
Damage: 50/100/150/200 (Talent 110/160/210/260)
Stun Duration: 1/1.1/1.2/1.3
Buff modifier_slardar_bash_active: Undispellable. Persists death.
Debuff modifier_bashed: Dispellable with strong dispels.
Thieves of the wealth of the Deep Ones meet the brutality of the Slithereen Guard in melee combat.


  • Does not stack with other bashes. The bash from Skull Basher icon.png Skull Basher and Abyssal Blade icon.png Abyssal Blade is completely disabled for Slardar.
    • In Ability Draft, these bashes are not disabled for the player that drafted Bash of the Deep.
  • Each successful attack done on an enemy hero or creep adds one to the attack counting buff.
    • The buff is always present, but turns invisible when at 0 charges.
  • Does not count attacks done against allies, wards or buildings, nor bashes them on the bashing attack.
  • The charges have no duration and last indefinitely.
  • When the charges reach 4, the bash is applied and the charges set back to 0.
  • The triggering attack first applies the debuff, then its own damage.
  • The bonus damage is dealt in one instance together with the attack damage, and counts as attack damage as well.
    • It can be lifestealed off of and cleave, but it is not considered by crit.
    • It is also not affected by percentage-based attack damage bonuses or reductions, but can be reduced with flat reductions.

Corrosive Haze
Corrosive Haze icon.png
Reduces enemy armor to amplify physical damage and provides True Sight and vision of the targeted unit, revealing invisibility.
Cast Animation: 0.3+0.67
Cast Range: 700/800/900
Armor Reduction: 10/15/20 (Talent 14/19/24)
Duration: 18
Cooldown: 5
Mana: 25
Debuff modifier_slardar_amplify_damage: Dispellable with any dispel.
Debuff modifier_slardar_amplify_damage (Talent): Dispellable with death only.
Even the strongest armor counts for little when left to the brine of the sea.



Hero Talents
Corrosive Haze Undispellable25-4s Slithereen Crush Cooldown
-4 Corrosive Haze Armor2025% Lifesteal
+60 Bash Damage15+275 Health
+20 Damage10+6 Health Regen
  • This attack damage talent is added as raw attack damage, so it does not benefit illusions, and is not affected by most percentage-based damage increasing or reducing effects.
  • The health talent increases maximum health capacity, and keeps the current health percentage.
  • The lifesteal talent stacks additively with other sources of lifesteal.

Recent Changes[edit]

Main Article: Slardar/Changelogs
  • Increased Corrosive Haze armor reduction from 8/13/18 to 10/15/20.
  • Talents:
Level 20 left talent changed: +800 night vision -> +4 Corrosive Haze armor reduction.
Level 25 right talent: -3.5s Slithereen Crush cooldown increased to -4s.
  • Talents:
Level 10 left talent: +25 attack damage reduced to +20.
Level 10 right talent: +8 health regen reduced to +6.
Level 15 left talent: +75 Bash of the Deep damage reduced to +60.
Level 15 right talent: +350 health reduced to +275.
Level 20 left talent: +1000 night vision reduced to +800.
Level 20 right talent: 30% lifesteal reduced to 25%.
Level 25 right talent: -4.5s Slithereen Crush cooldown reduced to -3.5s.
  • Guardian Sprint
    • Reduced movement speed bonus from 20%/28%/36%/44% to 18%/26%/34%/42%.
    • Reduced passive river movement speed bonus from 5%/20%/35%/50% to 7%/19%/31%/43%.

Recommended items[edit]

Starting items:

  • Tango icon.png Tango provides health regeneration to combat harassment.
  • Healing Salve icon.png Healing Salve also restores health to Slardar.
  • Clarity icon.png Clarity replenishes his mana pool from casting Slithereen Crush. Being able to cast his stun more than twice in-lane gives him more opportunities to get kills against lane opponents, and thus more opportunities at gold and experience.
  • Iron Branch icon.png Iron Branch provides a boost to Slardar's attributes and builds into Magic Wand later on.

Early game:

  • Magic Stick icon.png Magic Stick gives cheap burst healing and mana, which can give Slardar more survivability or enough mana to cast Slithereen Crush one more time to secure a kill.
  • Boots of Speed icon.png Boots of Speed are absolutely crucial early on for any hero. In Slardar's case, it greatly improves the potency of Guardian Sprint, allowing him to more easily catch up to fleeing enemies or escape pursuers.
  • Helm of Iron Will icon.png Helm of Iron Will provides good sustain in lane and the extra armor makes you very survivable against physical damage in the early game. It builds directly into an Armlet of Mordiggian.

Mid game:

  • Magic Wand icon.png Magic Wand provides a cheap boost to Slardar's attributes and a quick burst heal. Use it to survive that last bit of damage or cast one last spell in a teamfight.
  • Power Treads icon.png Power Treads's attribute switching can give Slardar more strength for HP and base damage, or more intelligence so he can use more of his abilities.
  • Blink Dagger icon.png Blink Dagger is extremely powerful in Slardar's hands, as he can instantly get within range to cast Slithereen Crush. It should be considered a core item in all circumstances, and rushed if possible.
  • Armlet of Mordiggian (Inactive) icon.png Armlet of Mordiggian improves his attack speed, armor, and damage, while the HP regen keeps him topped up. The active gives him extra strength and damage, making him much tankier and making his attacks hit harder.

Late game:

  • Black King Bar icon.png Black King Bar allows Slardar to ignore enemy crowd control spells, greatly improving his ability to kill important targets in teamfights. It also provides bonus strength for more HP, and increased physical damage output.
  • Lotus Orb icon.png Lotus Orb gives Slardar a way to counter enemy target spells, allowing him to disable enemy supports or discourage them from focusing him. It also provides armor for tankiness, and HP and mana regen to allow him to roam independently.

Situational items:

  • Shadow Blade icon.png Shadow Blade is a strong initiating item that improves Slardar's physical DPS and allows him to roam invisibly for targets. Combining Guardian Sprint and Shadow Walk can allow Slardar to move at maximum movement speed while invisible, and allows him to deal backstab damage when attacking out of invisibility.
  • Echo Sabre icon.png Echo Sabre can be a very effective item on a ganking Slardar. The extra hp and mana/regen are welcome on a hero who wants both. The bonus attack speed and instant attack passive synergize very well with Bash of the Deep. Also keep in mind the 25 additional damage is amplified by the negative armor value of Corrosive Haze, making the double attack especially effective on an enemy under the influence of Haze.
  • Heart of Tarrasque icon.png Heart of Tarrasque is the best survivability item in the game. Its raw HP and passive regeneration ability allows Slardar to stay in teamfights longer and recover from them faster.
  • Desolator icon.png Desolator is a relatively cheap item that provides increased bonus damage. Its attack modifier can reduce enemies' armor and synergizes with Corrosive Haze, allowing Slardar to shred enemies with his attacks.
  • Assault Cuirass icon.png Assault Cuirass improves Slardar's armor and attack speed, making him tankier and increasing his proc chance with Bash of the Deep. The aura gives allies more armor and attack speed as well, and the enemy armor reduction further reduces their physical damage resistance on top of Corrosive Haze.
  • Crimson Guard icon.png Crimson Guard provides Slardar with increased health, damage block and armor, drastically improving his tankiness and allowing him to shrug off most forms of physical damage. The active ability allows him to grant damage block and armor to all nearby teammates for a short time, increasing their survivability as well as his own.
  • Moon Shard icon.png Moon Shard greatly increases Slardar's attack speed, improving his physical damage output and a greater chance to proc Bash of the Deep. The Shade Sight passive also improves his night vision, allowing him to more easily spot targets while hunting in the darkness.
  • Bottle (Full) icon.png Bottle can be a good purchase on a roaming Slardar, as he can pick up runes while hunting for targets (both to refill the bottle and to utilize the runes for ganks). Slardar's small mana pool and being active in early ganks mean that he benefits from a source of HP and mana replenishment, particularly since he can treads switch to get more value out of it.
  • Urn of Shadows icon.png Urn of Shadows can be a useful early roaming item if Slardar intends to be very active in the early game. It provides strength for more HP and base damage, making him tankier and letting him hit harder, and provides a small amount of mana regen to help replenish his mana pool. As he can easily get charges from successful ganks, they can be used to heal Slardar after successful kills, and can add damage to future ganks.
  • Drum of Endurance icon.png Drum of Endurance provides Slardar with an array of useful bonuses. The attributes give Slardar more HP and mana, the latter of which is extremely helpful for allowing him to cast his spells, and the active provides movement and attack speed bonuses, both of which greatly help Slardar in combat.
  • Blade Mail icon.png Blade Mail gives Slardar many strong mid-game benefits that can fill in some of his deficiencies. The bonus intelligence helps him to cast his spells more easily, while the armor and damage make him a better fighter. The active lets Slardar use his HP offensively during ganks, and discourages enemies from targeting him in teamfights.
  • Silver Edge icon.png Silver Edge can be upgraded from Shadow Blade, and greatly increases Slardar's ganking prowess. The Shadow Walk backstab damage is increased, and the break can disable enemy passives that may be preventing Slardar from easily killing certain enemies. It also provides a nice boost to Slardar's stats.
  • Monkey King Bar icon.png Monkey King Bar greatly increases Slardar's physical damage and gives him additional magical procs to hit enemies with evasion and high armor to negate Corrosive Haze.
  • Eye of Skadi icon.png Eye of Skadi gives Slardar attributes across the board, making him much tankier and alleviating his mana issues. The attack modifier lets Slardar slow enemies with his attacks, further reducing their ability to escape him.
  • Mjollnir icon.png Mjollnir is a useful attack speed utility item that greatly increases Slardar's chances to proc his Bash of the Deep; as well, the Chain Lightning modifier allows him to deal magic damage around him with his attacks, giving him creep wave clearing capability and augmenting his damage output if he manages to land Slithereen Crush on multiple enemy heroes. Static Charge can further increase his damage output, discouraging enemies from focusing him for fear of proccing the discharge.
  • Satanic icon.png Satanic can greatly increase Slardar's survivability through a combination of factors. It provides high strength, making Slardar much tankier, and bonus damage to further give him more damage output. The lifesteal allows Slardar to maintain his HP, even in the midst of battle, as he can cast Corrosive Haze to increase the amount of damage dealt (and thus the amount he regenerates through lifesteal), and he can use the active to fully recover his HP in just a few attacks as well.


Roles: Carry Carry Durable Durable Initiator Initiator Disabler Disabler Escape Escape
Complexity: ★☆☆
Playstyle: More suited to the comforts of the lightless ocean canyons, Slardar surfaces only to scout, and to track down those who have thieved from the Sunken Treasury. Born under the immense pressure of the deep, he Guardian Sprints with one muscular tail, chasing down legged foes with alarming swiftness. Ever vigilant in his duties, Slardar casts a Corrosive Haze over hidden intruders, revealing their form and softening their armor. Once discovered, there was little time to react. Slardar smashes the ground with a Slithereen Crush, dazing nearby enemies just long enough to pulverize them with Bash of the Deep.





  • In DotA, Corrosive Haze was auto-castable.
  • With the 7.00 gameplay update, three of Slardar's abilities have been renamed: Sprint to Guardian Sprint, Bash to Bash of the Deep, and Amplify Damage to Corrosive Haze.
  • Slardar's voice line ▶️ "The last…of the old guard." is a quote by Viggo Tarasov to Marcus just before killing him in the movie John Wick (2014).
  • Slardar's voice lines ▶️ "That is not dead that can eternal lie." and ▶️ "And with strange aeons even death may die." are direct quotes from H. P. Lovecraft's short story The Nameless City.
  • Another Lovecraft story, The Shadow over Innsmouth is also referred several times in Slardar's backstory and voice files with mentions to "The Old Ones" and "The Deep Ones".
  • Slardar's model is based on the Naga from the Warcraft franchise.