Dota2ProTips

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Heroes/Slardar
Slardar
StrengthMelee

Slardar

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.

Base STR

21 +3.4

Base AGI

17 +2.1

Base INT

15 +1.5

Move Speed

300

Attack Range

150

Base Armor

2

Attack DMG

30–38

Projectile

Instant

Seaborn Sentinel

Seaborn Sentinel

PassiveInnateAghanim's Scepter

Slardar gains bonus movement speed, health regeneration, attack damage, and armor while in a puddle, trail, or river.

BONUS MOVE SPEED:

18%

HP REGEN:

1.75

BONUS ARMOR:

1.8

STATUS RESISTANCE:

0%

BONUS ATTACK DAMAGE:

11.4%

Guardian Sprint

Guardian Sprint

No Target

Cooldown

33 / 28 / 23 / 18s

Mana

25

Slardar slithers ahead, moving significantly faster and passing through units. Slardar has 100% slow resistance for the first 2.5s. The slow resistance gradually fades over the remaining sprint duration.

BONUS MOVE SPEED:

10 / 18 / 26 / 34%

DURATION:

10

  • Activating this skill doesn't interrupt channeling abilities.

As Slardar has made the transition from the Deeps, it has been necessary to use his powerful tail for sprinting instead of swimming.

Slithereen Crush

Slithereen Crush

No TargetAghanim's Shard

Cooldown

7s

Mana

100

Slams the ground, leaving a puddle of water, and stunning and damaging nearby enemy units. After the stun, the affected units are slowed.

RADIUS:

325

MOVEMENT SLOW:

-20 / -25 / -30 / -35%

ATTACK SLOW:

-20 / -25 / -30 / -35

SLOW DURATION:

3 / 4 / 5 / 6

STUN DURATION:

0.8

PUDDLE DURATION:

7

PUDDLE RADIUS:

325

DAMAGE:

75 / 150 / 225 / 300

HAZE DURATION:

0

A swift crush of might and water breaks even the toughest of defenses.

Bash of the Deep

Bash of the Deep

Passive

After 3 attacks, your next attack will bash the target.

BONUS DAMAGE:

35 / 90 / 145 / 200

BASH DURATION:

1

  • Does not stack with Skull Basher.

Thieves of the wealth of the Deep Ones meet the brutality of the Slithereen Guard in melee combat.

Corrosive Haze

Corrosive Haze

Unit Target

Cooldown

5s

Mana

25

Reduces enemy armor to amplify physical damage and provides True Sight and vision of the targeted unit, revealing invisibility. The enemy unit leaves a trail of water behind it.

ARMOR REDUCTION:

-10 / -15 / -20

DURATION:

18

TRAIL RADIUS:

100

TRAIL DURATION:

7

Even the strongest armor counts for little when left to the brine of the sea.

+2s Guardian Sprint Duration
10
+30 Bash of the Deep Damage
+250 Health
15
-3 Corrosive Haze Armor
+125 Slithereen Crush Damage
20
+16% Seaborn Sentinel Bonus Attack Damage
-3s Slithereen Crush Cooldown
25
Corrosive Haze Undispellable
Aghanim's Shard
Slithereen Crush

Slithereen Crush

Slithereen Crush now applies Corrosive Haze for a short time to units affected.

Median across all public matches · OpenDota
FormPerformanceLaningFarmFightingExperience

Form

51%

Win rate in recent matches

Performance

94%

KDA ratio (kills + assists / deaths)

Laning

38%

Last hits per minute over full game

Farm

60%

Average gold per minute

Fighting

30%

Average kills + assists per match

Experience

80%

Average XP per minute

Strategy

When to Pick Slardar?

Hoohohoho. Let me tell you something about Slardar that most people do not think about. This hero has been one of the most contested picks in organized professional Dota 2 for years—not because he is broken, not because he is the flashiest hero in the game, but because he does something that almost no other offlaner or mid laner provides simultaneously: global True Sight on any hero he Corrosive Hazes; massive armor reduction that benefits the ENTIRE team's physical damage; and a bash every three attacks that requires no item investment to proc. In the current meta where Lifestealer, Night Stalker, and Ursa are among the most dominant physical damage carries—heroes who right-click everything and need their targets to have reduced armor to maximize damage output—a Slardar running at the enemy carry and applying Corrosive Haze for 18 armor reduction at max level is giving his entire team a free Desolator's worth of armor reduction that applies to every single right-click from every allied hero simultaneously. The carry does not need to build armor reduction. The offlaner does not need to build it. Slardar provides it from his kit at zero item cost.

The Seaborn Sentinel innate is genuinely impactful in fights that involve the river or any water terrain Slardar himself creates. Slithereen Crush creates a puddle that activates Seaborn Sentinel—which means every time Slardar uses his stun in a fight, he generates a water terrain patch granting him bonus armor, bonus attack damage, bonus movement speed, and bonus HP regen for the puddle's duration. The Corrosive Haze trail that Corrosive Hazed enemies leave behind also qualifies as water terrain, meaning if a Hazed enemy walks across the map, Slardar can follow that trail and maintain Seaborn Sentinel bonuses during the chase. Guardian Sprint is now a passive movement speed boost of up to 50% inside the river at max level with 100% slow resistance for the first 2.5 seconds of activation — which means the moment Guardian Sprint activates, Slardar is temporarily impossible to kite with slows. No slow in the game reduces his movement speed for that window. He just runs at maximum speed through Naga Siren's ensnare slow, through Crystal Maiden's Frostbite, and through Rod of Atos roots—the slow resistance literally ignores the movement penalty, and he arrives at the target before they can process what happened.

Corrosive Haze additionally grants Slardar self armor equal to 50% of the TOTAL armor reduction applied to all enemy units currently affected. Apply it to two enemy heroes simultaneously, and Slardar is gaining armor from both reductions simultaneously, stacking independently. This is why the pro scene loves him—a hero who makes his own team's physical damage output dramatically more threatening while simultaneously becoming harder to kill the more enemies he Hazes is a hero whose value compounds with the quality of the team around him. Noticed from Team Yandex that he was named as one of the three best offlane heroes for grinding pubs, where he was sitting at a 52.2% winrate. However, I want to be honest—DM's current patch 7.41a offlane tier list does not include Slardar at all, not even A-tier, and the current meta's dominant offlaners are Bristleback, Doom, Tidehunter, Enigma, and Batrider in the top slots. He is not the easiest blind pick in the current meta. He shines most when the draft has multiple physical damage carries who benefit from Corrosive Haze's armor reduction and when the enemy team has no dispel to remove Corrosive Haze. He is disgusting to invisible heroes—Bounty Hunter, Riki, and Clinkz—because Corrosive Haze applies True Sight on the target, making them permanently visible to your entire team for the ten-second debuff duration. One Corrosive Haze on an invisible hero removes their entire defensive mechanic for ten seconds at a cost of zero gold. He pairs beautifully with physical damage carries who need armor reduction to reach kill thresholds—Night Stalker at night with full attack speed right-clicking a minus-18-armor hero and Lifestealer, whose Feast bonus damage scales on percentage of HP dealt, which benefits from armor reduction, making more of those attacks effective. Avoid picking him into lineups with easy dispels that remove Corrosive Haze immediately—Lotus Orb reflects it back onto Slardar, Manta Style dispels it instantly, and a Phantom Lancer who builds Diffusal Blade or Manta removes the Haze the moment it lands and restores their armor.

Tips & common mistakes

  • Corrosive Haze grants Slardar's self-armor is equal to 50% of total armor reduced from ALL currently affected enemies—most pub Slardar players apply one Haze to one hero and never think about the stacking self-armor mechanic. Applying Corrosive Haze to multiple heroes simultaneously stacks independent armor buffs on Slardar from each application. In a teamfight where three heroes are hazed simultaneously, Slardar is receiving three independent armor stacks, making him dramatically harder to kill. Prioritize applying Corrosive Haze to multiple enemies at the start of a fight rather than only targeting the priority kill.
  • Slithereen Crush creates a puddle that activates Seaborn Sentinel bonuses—most pub Slardar players stun and then immediately chase without realizing the puddle they just created is providing them bonus armor, damage, and regen for its duration. After Slithereen crushes you in a fight, stay NEAR the puddle for the first few seconds to absorb the Seaborn Sentinel bonuses before committing deeper. The bonus damage in particular makes right-clicks during the puddle window hit harder.
  • Guardian Sprint's 100% slow resistance lasts for 2.5 seconds after activation — most pub Slardar players activate it and run in a straight line toward their target. The correct use when being kited is to activate Guardian Sprint when slows land — not before — so the slow resistance specifically cancels the slow that was just applied. Activating it proactively wastes the resistance window on a clean approach, while activating reactively converts an incoming slow one into a free gap close.
  • Bash of the Deep procs every third attack and requires no item — most pub Slardar players buy Skull Basher on top of Bash of the Deep, which explicitly does NOT stack with it. The tooltip confirms this directly. Every gold spent on Skull Basher on Slardar is completely wasted gold that could have been Blink Dagger, Aghanim's Scepter, or any other impactful item. Do not buy Skull Basher. Ever.
  • Corrosive Haze provides True Sight on the target for the full ten-second debuff duration — which means it counter-initiates invisibility heroes completely. Most pub Slardar players treat Corrosive Haze purely as an armor reduction tool and are surprised when they kill Bounty Hunter or Riki through Shadow Walk. Position Slardar near areas where invisible heroes are expected to be, and use Corrosive Haze the moment any hero goes invisible—the True Sight reveals them for the team immediately.
  • Aghanim's Shard applies Corrosive Haze to ALL enemies hit by Slithereen Crush simultaneously — most pub Slardar players buy Shard and then use Slithereen Crush the same way they did before, targeting single isolated heroes. With Shard, the correct use is to stun GROUPED enemies and have the Haze apply to all of them simultaneously, instantly generating massive stacking self-armor from multiple simultaneous Haze applications while also stripping armor from the entire grouped enemy team in one cast.
  • Slardar has 300 base movement speed and Guardian Sprint — most pub Slardar players build Blink Dagger as their first item and then never use Guardian Sprint offensively because Blink provides reliable initiation without needing Sprint. In the current laning phase, where you need to be active across the map between ten and twenty minutes, Guardian Sprint's movement speed bonus through the river provides map coverage between fights that no other initiation hero matches. Use the river actively when rotating between objectives.

Summary

Slardar is always contested in professional play because he does something uniquely valuable that no itemization can replicate—free armor reduction for the entire team from a single ability, True Sight on demand that counters invisibility heroes, and a bash every three attacks requiring zero item investment.

The current patch has him sitting at around 52% in high MMR pubs per Noticed's analysis, and while DM's tier list does not include him in the top offlane slots of the current patch, his presence in organized play remains consistent precisely because the value of Corrosive Haze in a physical damage team draft is difficult to quantify in pub win rate numbers alone.

Pick him when your team has two or more physical damage carries who need armor reduction to reach their kill thresholds. Apply Corrosive Haze to as many enemies as possible in every fight. And run at people through the river at a speed they cannot catch.

Starting Items

branchesgauntletstangocircletquelling_blademagic_stick

Early Game

bracerbootspower_treadssoul_ringbottleogre_axe

Core

aghanims_shardblack_king_barecho_sabreharpoonultimate_scepterhand_of_midas

Late Game

assaultnullifiersange_and_yashalotus_orbsoul_boosterultimate_scepter_2
Gunpowder GauntletSerrated ShivBrigand's BladeDefiant ShellGiant's MaulPoor Man's Shield

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