Slark the Nightcrawler is a melee agility hero that utilises his skills to spring onto enemy heroes and slip out unhindered. He is a very mobile ganker, but remains statwise below most other carries unless he is able to steal away stats with his abilities. Once he does, though, only a few heroes can hope to be as fearsome as the Nightcrawler - extremely mobile to the point of ever-presence; his strikes only hitting harder and faster.
Slark can quickly leap forward onto enemies with Pounce to leash them and bind them from escaping. His Dark Pact releases a delayed purge that breaks even the most powerful disables. This gives him one of the most flexible abilities to start and end fights in the game. He is also capable of stealing stats on auto-attacks to boost his own damage temporarily with Essence Shift which can rapidly shift engagements in his favor, even when merely performing hit-and-run maneuvers. Slark's ultimate, Shadow Dance, allows him to remain unseen even while attacking for a short duration and allows him to move quicker when not under the watch of enemy eyes to strike in and out of enemy ranks unhindered.
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- Pounce is good for both chasing and escaping enemies.
- Dark Pact is a wonderful tool for purging the negative debuffs placed on him. When used at the right time, during the delay, the waves emitted from Slark will also remove the incoming debuffs about to be placed on him, allowing you to "dodge" or shorten their duration.
- Unlike most purges, Dark Pact can purge stuns from Slark - bear this in mind if you have been targeted by a slow moving projectile stun (such as Sven's Storm Hammer or Alchemist's Unstable Concoction) and time your activation of Dark Pact to remove it as it strikes. With enough practice you can time it to almost completely nullify their usage.
- Dark Pact also offers Slark a very interesting kind of advantage against certain defenses. The burst from Dark Pact is calculated as 10 attacks very quickly after another, meaning that Slark can use it against buffs like Living Armor, which offer protection but only defend against a set number of damage instances before disappearing.
- If you are low on HP after learning your ultimate, Shadow Dance, try to avoid being attacked and then take advantage of your ultimate's passive healing ability.
- When being chased, try to get out of sight from the enemy, be it around trees, up hills, et cetera. The passive speed boost from Slark's ultimate will activate when out of enemy sight and last for a short moment after sight is regained. If you are desperate, make use of Pounce to quickly clear treelines and cliffs.
- You can take advantage of the bonus attack speed from both Mask of Madness and Essence Shift but be wary of the increased damage taken as Slark is very squishy.
- If timed right, Pounce can be used to dodge some projectile skills such as Sniper's ultimate.
- A helpful side effect of Shadow Dance's passive is that Slark gains a weak form of detection. If you find that you've suddenly lost your movement speed and health regeneration bonuses while seemingly alone, it means one of two things. It can mean an enemy is lurking around in the area that you can't see and you should be extra cautious. Otherwise, if your enemies are all accounted for, it means the enemy has wards in the area and you should let your team know.
- Slark functions a bit differently from most carries - while a standard carry capitalizes on sustained damage, Slark takes on a more hit-and-run approach. Maximize his Essence Shift's duration by continually harassing and retreating. Go for the kill once you think you have enough damage and attack speed to take down enemy heroes. Slark's base stats are average at best, although with enough stolen Agility he can keep up with hard carries such as Phantom Assassin and Sniper.
- Maximize Essence Shift's efficiency by taking objectives using his stolen stats. After a large teamfight, it is not uncommon to find that Slark has stolen upwards of 50 agility, making quick work of untended towers or Roshan.
- There are two main skill builds for Slark: one of them is based on maxing Dark Pact after maxing Pounce, with one point in Essence Shift; this way, you'll have a good nuke with a very low cooldown, which works perfectly with your Pounce. The second build is based on his passive ability, Essence Shift: the more you attack enemy Heroes, the stronger you'll get, since you'll gain more and more agility.
- The DotA version of Slark bears many similarities with a rare World of Warcraft creature of the same name.
- Slark's murloc heritage was completely removed in transition to Dota 2 to avoid copyright issues, since the murloc are an existing race in the Warcraft universe.
- Slark, along with Luna (with Lunar Blessing), is one of the few heroes to have 1800 sight range at both day and night.
- Slark's response upon activating a Double Damage rune, "Met you once, cut you twice," may be a reference to the popular Design Technology phrase "Measure twice, cut once"
 Update History
- Fixed Pounce's Leash getting dispelled.
- Fixed Shadow Dance passive buff icon updating on hero proximity while dead.
- Fixed Pounce sometimes causing an allied Flaming Lasso to end early.
- Fixed Dark Pact:
- Enabled Bristleback, Skywrath Mage, and Slark in Captain's Mode (Tournament Version)
- Enabled Bristleback, Slark and Skywrath Mage in Captain's Mode (Latest Version).
- Shadow Dance:
- Fixed ability giving Slark flying vision.
- Fixed ability granting passive bonuses to Slark illusions.
- Fixed an issue causing the ability's passive modifier to not update in the UI, despite being active.
- Dark Pact:
- Fixed the ability continuing while Slark is dead.
- Fixed a number of incorrect spell interactions with the ability.
- Essence Shift counters on both Slark and enemy heroes will show the total duration ( i.e. the time that the most recent stack will expire.)
- Fixed a number of horizontal movement ability interactions with Pounce.
- Fixed Pounce not initiating an attack order on the leashed target.
- Fixed Dark Pact and Kraken Shell not removing Sticky Napalm, Shadow Strike, Venomous Gale, Poison Nova and Viper Strike.
- Fixed Impale based stuns not getting removed by Dark Pact.
- Fixed some bugs with Pounce movement restriction.
 Balance changelog
- Shadow Dance:
- Duration reduced from 5.5 to 4.
- Cooldown increased from 25 to 65.
- Can no longer be revealed by Truesight.
- Base agility increased by 6.
- Dark Pact cooldown decreased from 10/9/8/7 to 9/8/7/6.
- Shadow Dance HP regen increased from 3/4/5% to 3/5/7%.
- Damage increased from 40/80/120/160 to 70/140/210/280.
- Cooldown rescaled from 12 to 20/16/12/8.
- Cast range increased from 400/500/600/700 to 700.
- Shadow Dance
- Regen increased from 2/3/4% to 3/4/5%.
- Passive bonuses activation delay decreased from 0.7 to 0.5.
- Essence Shift no longer permanently steals attributes.
- Strength growth increased from 1.0 to 1.8.
- Agility growth reduced from 2.0 to 1.5.
- Intelligence growth increased from 1.6 to 1.9.
- No longer hits non-hero units.
- AoE increased from 85 to 95.
- Speed fixed to be the same at all levels.
- Essence Shift
- Now reduces each stat by 1 on attacks (no longer reduces the primary by 2).
- Agility bonus reduced from 4 to 3 per attack.
- Duration increased from 15/30/45/60 to 15/30/60/120 .
- Permanently reduces each stat of a hero Slark kills by 1 and he gains 3 Agi permanently.
- Pounce cooldown reduced from 16 to 12.
- Dark Pact
- Adjusted the timing. Instead of starting after 2 seconds and pulsing (damage and buff removal) over 0.5 seconds, it now starts after 1.5 seconds and pulses over 1 second. Same overall damage but now has a longer duration for the buff removal period.
- Self damage is now dealt to himself as he deals it to the area around him instead of at cast time.
- Base Agility decreased from 21 to 15 and increased starting damage by the same amount.
- Dark Pact cooldown reduced from 10 to 10/9/8/7.
- Pounce damage rescaled from 50/75/100/125 to 40/80/120/160.
- Pounce leash now gets removed if the target blinks or teleports away.
- Shadow Dance passive no longer works if Slark is Doomed.
 See Also