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Slardar icon.png
Strength attribute symbol.png
21 + 3.1
Agility attribute symbol.png
17 + 2.4
Intelligence attribute symbol.png
15 + 1.5
Level Base 1 15 25
Health 200 620 1480 2100
H. regen amp 0% 15% 46% 68.14%
Mana 75 255 507 687
M. regen amp 0% 30% 72% 102%
Armor 3 5.83 11.43 15.43
Spell dmg 0% 1.07% 2.57% 3.64%
Att/sec 0.59 0.69 0.89 1.03
Damage 30‒38 51‒59 94‒102 125‒133
Status res. 0% 3.15% 9.66% 14.31%
Base health regen 1.5
Base mana regen 0.9
Movement speed 290
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
Magic resistance 25%
Collision size 24
Legs 0

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. It does increase the damage Slardar takes, so it must be used with extreme caution. 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, 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 Slardar, the Slithereen Guard
Play "I guard what slumbers in the deeps."
Lore: 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.
Voice: Sam A. Mowry (Responses)


Guardian Sprint
Pierces spell immunity. Play
Guardian Sprint icon.png
No Target
Slardar slithers ahead, moving significantly faster and passing through units, though becoming more vulnerable to damage. At ability level 4, Slardar may move at 700 speed while in the river.
Cast Animation: 0+0
Damage Amplification: 15%
Move Speed Bonus: 20%/28%/36%/44%
Level 4 River Haste Speed: 700
Duration: 12
Cooldown symbol.png 17
Buff 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.
  • Amplified damage is the same type as the damage dealt.
  • When on level 4, applies haste on Slardar, meaning he cannot be slowed below the set value.
    • The haste does not linger after leaving the river.

Slithereen Crush
Does not pierce spell immunity. Play
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
Radius: 350
Damage: 75/125/175/225
Move Speed Slow: 20%
Attack Speed Slow: 20
Stun Duration: 1.25/1.5/1.75/2
Slow Duration: 2
Cooldown symbol.png 8
Mana symbol.png 80/95/105/115
Does not pierce spell immunity. Slow persists if debuff was placed before spell immunity and when not dispelled.
Debuff Slithereen Crush: Dispellable with any dispel.
Debuff 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 3.25/3.5/3.75/4 seconds.
  • The crush first applies the debuffs, then the damage.

Bash of the Deep
Cannot be used by illusions. Disabled by Break. Pierces spell immunity. Play
Bash of the Deep icon.png
Grants a chance that an attack will do bonus damage and stun an enemy. The duration is doubled against creeps.
Proc Chance: 10%/15%/20%/25% (Talent 25%/30%/35%/40%)
Damage: 60/80/100/120 (Talent 160/180/200/220)
Hero Stun Duration: 1
Non-Hero Stun Duration: 2
Debuff Bashed: Dispellable with strong dispels.
Thieves of the wealth of the Deep Ones meet the brutality of the Slithereen Guard in melee combat.


  • The proccing attack first applies the debuff, then its own damage.
  • Slardar can lifesteal off the damage dealt by Bash of the Deep. However, it cannot crit or cleave.
  • Adds an average of 6/12/20/30 damage to every attack.
    • Adds an average of 16/27/40/55 damage to every attack when the damage increasing talent is chosen.
    • Adds an average of 15/24/35/48 damage to every attack when the proc chance increasing talent is chosen.
    • Adds an average of 40/54/70/88 damage to every attack when both talents is chosen.

Corrosive Haze
Blocked by Linken's Sphere. Pierces spell immunity. Play
Corrosive Haze icon.png
Reduces enemy armor to amplify physical damage and provides True Sight of the targeted unit, revealing invisibility.
Cast Animation: 0.35+0.6
Cast Range: 700
Armor Reduction: 10/15/20
Duration: 18
Cooldown symbol.png 5
Mana symbol.png 25
Debuff Amplify Damage: Dispellable with any dispel.
Debuff Amplify Damage (Talent): Undispellable.
Even the strongest armor counts for little when left to the brine of the sea.



Hero Talents
Corrosive Haze icon.png Corrosive Haze Undispellable 25 +15% Bash of the Deep icon.png Bash Chance
+1000 Night Vision 20 +50 Attack Speed
+100 Bash of the Deep icon.png Bash Damage 15 +300 Health
+20 Damage 10 +5 Health Regen
  • The health talent increases maximum health capacity, and keeps the current health percentage.
  • The night vision talent does not counter any vision reducing effect.

Recommended items[edit]

Starting items:

  • Stout Shield icon.png Stout Shield helps to mitigate harass damage taken by ranged lane opponents, extending Slardar's survivability in-lane.
  • Healing Salve icon.png Healing Salve and Tango icon.png Tangoes provide basic health regeneration to prevent being harassed out of lane.
  • Clarity icon.png Clarity gives Slardar a way to replenish 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 small boost to Slardar's attributes and can be used to make a 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 is the best boot choice for Slardar, as attribute switching can give Slardar more strength for HP and base damage or more intelligence to reduce the mana cost of his spells. The attack speed improves his chances of proccing Bash of the Deep.
  • 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 is very cheap and gives Slardar many powerful bonuses. Improving his attack speed, armor and damage makes him a much stronger fighter, 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 his 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 damage vulnerability from Guardian Sprint means 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, particularly as he takes increased damage during Guardian Sprint, and can add damage to future ganks.
  • Drum of Endurance icon.png Drum of Endurance provides Slardar with an array of useful bonuses. The all-around attributes give Slardar more HP and mana, the latter of which is extremely helpful for allowing him to cast his spells, and the aura provides movement and attack speed bonuses, both of which greatly help Slardar in combat. In particular, the movement speed aura can combine with Guardian Sprint to allow Slardar to reach the movement speed cap of 550.
  • Vanguard icon.png Vanguard is a useful mid-game item that greatly increases Slardar's beefiness. The damage block and HP bonus help to reduce Slardar's vulnerability during Guardian Sprint, and the item can be upgraded into a Crimson Guard later for increased utility.
  • 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.
  • Vladmir's Offering icon.png Vladmir's Offering is an unorthodox utility item that can help Slardar to stay in the game if his late-game item progression is being stunted by enemy aggression. It provides Slardar with armor for survivability and mana regen for sustaining his small mana pool, while the lifesteal allows him to maintain his HP pool from any damage he incurs due to Guardian Sprint. The damage bonus also allows him and his team to hit harder, allowing them to better utilize Corrosive Haze.
  • Sange and Yasha icon.png Sange and Yasha allows Slardar to fight earlier, as it has an easy buildup and provides many useful bonuses. It gives Slardar increased HP, armor, damage and attack speed, along with improved movement speed that allows him to pursue enemies without resorting to Guardian Sprint. The Greater Maim can work alongside Bash of the Deep to greatly increase the lethality of Slardar's attacks, making him a force to be reckoned with.
  • 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 reduces the damage output of the hit enemy, and 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 accuracy, which can be important against certain enemies with high evasion or evasion items. The Pure damage is also nice on Slardar whose only natural source of damage is physical. Pure damage bypasses armor, so it is very helpful against enemies stacking armor to negate Corrosive Haze.
  • Eye of Skadi icon.png Eye of Skadi gives Slardar stats 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


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 icon.png Guardian Sprint, Bash to Bash of the Deep icon.png Bash of the Deep, and Amplify Damage to Corrosive Haze icon.png Corrosive Haze.
  • Slardar's voice lines Play "That is not dead that can eternal lie." and Play "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 of the Naga from the Warcraft franchise.


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