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Clockwerk icon.png
Strength attribute symbol.png
Agility attribute symbol.png
Intelligence attribute symbol.png
26 + 3.5
13 + 2.3
18 + 1.5
Level 0 1 15 25 30
Health 200 720 1700 2640 3020
+0.25 +2.85 +7.75 +12.45 +14.4
Mana 75 291 543 867 975
+0 +0.9 +1.95 +3.3 +3.78
Armor 1 3.17 8.53 14.37 16.62
Damage Block 16 (50%)
Magic Resistance 25%
Status Resistance 0%
Damage 24‒26 50‒52 99‒101 146‒148 165‒167
Attack Rate 0.59/s 0.66/s 0.85/s 1.06/s 1.14/s
Attack Range Melee 150 (600)
Attack Speed ▶️ 100 (1.7s BAT)
Attack Animation 0.33+0.64
Projectile Speed Instant
Movement Speed ▶️ 310
Turn Rate Takes 0.175s to turn 180°. 0.6
Collision Size 24
Vision Range (G) 1800 • 800
Legs 2
Gib Type Motor
Ability Upgrades
Upgradable by Aghanim's Scepter.
Upgradable by Aghanim's Shard.
Launches himself into enemies with his hookshot.
Powered by revenge and ingenuity, Rattletrap armored himself into an instrument of war. Firing Rockets from his shoulder-mounted launcher, striking and revealing distant territories. With a built-in Jetpack for scouting convenience, a sudden Hookshot flies, latching instantly and pulling the mechanized Keen to his unsuspecting foe. Before the stunned target could react, Rattletrap erects a grid of Power Cogs, isolating and trapping his foe within while repelling help from without. He triggers the suit's Battery Assault, and watches the target panic as short bursts of shrapnel whittle down its remaining health...
Battery Assault
Power Cogs
Rocket Flare
Roles: Initiator Initiator Disabler Disabler Durable Durable Nuker Nuker
Complexity: ★★☆


Clockwerk minimap icon.pngRattletrap, the Clockwerk
▶️ "I've a mind like a steel trap, and the physique to go with it!"
Rattletrap descends from the same far-flung kindred as Sniper and Tinker, and like many of the Keen Folk, has offset his diminutive stature through the application of gadgetry and wit. The son of the son of a clockmaker, Rattletrap was many years apprenticed to that trade before war rode down from the mountains and swept the plains villages free of such innocent vocations. "Your new trade is battle," his dying father told him as the village of their ancestors lay in charred and smoking ruins.

It is a poor tradesman who blames his tools, and Rattletrap was never one to make excuses. After burying his father among the ruins of their village, he set about to transform himself into the greatest tool of warfare that any world had ever seen. He vowed to never again be caught unprepared, instead using his talents to assemble a suit of powered Clockwerk armor to make the knights of other lands look like tin cans by comparison. Now Rattletrap is alive with devices, a small but deadly warrior whose skills at ambush and destruction have risen to near-automated levels of efficiency. An artisan of death, his mechanizations make short work of the unwary, heralding a new dawn in this age of warfare. What time is it? It's Clockwerk time!


Battery Assault
Battery Assault icon.png
No Target
Discharges high-powered shrapnel at random nearby enemy units, dealing minor magical damage and ministun.
Cast Animation: 0+0
Search Radius: 275
Shrapnel Interval: 0.7 (Talent 0.45)
Damage per Shrapnel: 20/45/70/95 (Talent 44/69/94/119)
Stun Duration: 0.1
Assault Duration: 10.5
Cooldown: 24/22/20/18
Mana: 100
Modifiers [?]
Some of Rattletrap's contraptions don't quite work correctly, so detonating them proves useful as an offensive maneuver.


  • Interrupts Clockwerk's channeling abilities upon cast.
  • Remains active even if Clockwerk is disabled.
  • Discharges a total of 16 (Talent 24) shrapnels, starting immediately upon cast.
  • Can deal a total of 320/720/1120/1520 damage (before reductions).
    • The damage increasing Talent talent can deal a total of 704/1104/1504/1904 damage.
    • The interval reducing Talent talent can deal a total of 480/1080/1680/2280 damage.
    • With both Talent talents, it deals a total of 1056/1656/2256/2856 damage.
  • The damage increasing Talent talent immediately updates the currently running instance.
  • However, the interval reducing Talent talent does not affect the currently running instance.
    • It does not update the interval upon refreshing the current instance either. The current instance must expire first.
  • Each shrapnel first applies the damage, then the debuff.
  • The buff from multiple casts do not stack, but refresh the duration instead.

Power Cog
Clockwerk Power Cog model.png
Summoned Ward
This unit has no mana.
Level 0
Duration Ability Duration 5/6/7/8
Armor Armor 0
Magic Resistance 0%
Status Resistance 0%
Collision Size 80
Vision Range (G) 1600600
Bounty Gold 1620
Experience 0
Model Scale 1.7

Power Cogs formation.

Power Cogs icon.png
No Target
Forms a barrier of energized cogs around Clockwerk, trapping any units that are near. Enemies outside the trap that touch a cog are knocked back, losing health and mana. Once a cog has delivered a shock, it will power down. Cogs can be destroyed by enemy attacks, but Clockwerk can destroy them with just one.
Cast Animation: 0.2+0.5
Cogs Spawn Radius: 215
Cogs Aura Radius: 225
Number of Cogs: 8
Attacks to Destroy: 2 (Talent 4)
Shock Search Radius: 185
Shock Damage: 50/125/200/275
Shock Mana Loss: 50/80/110/140 (Talent 110/140/170/200)
Shock Knockback Distance: 300
Shock Knockback Duration: 1
Cogs Duration: 5/6/7/8
Effects Linger Duration: 0.5
Cooldown: 15
Mana: 80
Does not pierce spell immunity.
Burns mana and attempts to damage if debuff was placed before spell immunity and when not dispelled.
Modifiers [?]
One of Clockwerk's inventions of which he is most proud is the power cog - though it is sometimes despised by his allies.


  • The cogs are always placed in the same formation.
    • 8 cogs are placed so that they form a circle around Clockwerk. The center of the circle is empty.
    • Each cog is spawned 215 range away from Clockwerk, effectively blocking a 255 radius circle due to their collision size.
    • All cogs are placed with a 164.5 range distance from each other. Together with their collision size, the gap between the cogs is 4.5.
    • This means that any unit trapped within the center of the circle cannot move out unless it has unobstructed movement.
  • A cog shocks the first enemy unit which comes within 185 range of it from the outside. A cog can only shock a unit once.
  • Knocks units back into the direction they approach the cog from.
    • The knockback distance is 300 at a speed of 300, so it lasts exactly 1 second.
    • Destroys trees enemies come in contact with during the knockback.
    • Affected enemies are fully disabled during the knockback.
    • The damage and mana loss are applied at the end of the knockback. Applies the damage first, and then the mana loss.
  • Although the cogs deliver the shocks, all effects (knockback, damage and mana loss) are sourced to the caster, not the cog.
  • Non-player-controlled units (i.e. lane creeps) do not try to path around the cogs, but simply walk against them as if they are not there.
    • This effectively causes them to get stuck, until they change directions (e.g. when being aggro'd), or until the cogs expire.
  • The cogs can also be attacked and destroyed or denied by allies, taking the same amount of attacks as enemies.
    • Only Clockwerk can destroy them in one hit.
  • Despite having 100 health, attacking the cogs deals 0 damage. The cogs' health bar does not visually decrease when attacking them either.
  • Power Cogs has an aura at its center with a radius of 225 that debuffs enemies.
    • By default, the debuff does nothing but create particle effects on enemies within.
    • The aura only affects heroes, illusions, clones, and creep-heroes.
    • The aura always lasts the full duration, even if all cogs get destroyed.
    • The modifiers linger for 0.5 seconds.
    • With the leash units inside Talent talent, the debuff leashes enemies, preventing them from casting certain mobility abilities.
    • With the spell immunity Talent talent, it also starts affecting Clockwerk, granting him spell immunity while inside.

Rocket Flare icon.png
Fires a global range flare that explodes over a given area, damaging enemies and providing vision for 6 seconds.
Cast Animation: 0.3+0
Cast Range: Global
Radius: 600
Damage: 80/120/160/200
Vision Duration: 6
Talent True Sight Duration: 10
Talent True Sight Linger Duration: 0.5
Cooldown: 20/18/16/14 (Talent 18/16/14/12)
Mana: 35/40/45/50
Modifiers [?]
What started as a festive display has become a useful scouting and bombardment tool.


  • The Rocket Flare travels at a speed of 2250.
  • Provides flying vision in a 600 radius for 1 second while traveling and for 6 seconds at the targeted area after reaching it.
    • The Rocket Flare True Sight talent grants True Sight at the targeted area for 10 seconds.
    • The True Sight is provided by an aura which affects enemies. Its debuff lingers for 0.5 seconds.
    • Does not reveal trees enchanted by Eyes In The Forest.
    • The talent immediately upgrades all of Clockwerk's currently flying rockets. However, it does not add True Sight to rockets that already reached their targeted point and exploded.
  • The projectile can be seen on the minimap. It appears green to allies and red to enemies (enemies require vision over it to see it).

Overclocking icon.png
No Target
Resets Clockwerk's ability cooldowns and grants him bonus movement and attack speed for a duration. Clockwerk becomes stunned after the duration runs out.
Cast Animation: 0+0
Move Speed Bonus: 30%
Attack Speed Bonus: 200
Duration: 8
Stun Duration: 4
Cooldown: 60
Mana: 150
Modifiers [?]
Ability Draft Notes
Ability Draft Notes:
Upgradable by Aghanim's Scepter.
Requires drafting Hookshot to be unlocked.
Rattletrap understands the limitations of his armor. Just as he understands the risks of pushing past them in times of need.


  • Interrupts Clockwerk's channeling abilities upon cast.
  • Reset all of the caster's ability cooldowns. Item cooldowns are not reset.
  • Recasting Overclocking refreshes the debuff's duration, but does not reset cooldowns again.

Jetpack icon.png
No Target
Clockwerk activates a jetpack, gaining flying movement, flying vision, and bonus movement speed. Clockwerk has a severely-limited turn rate during this time and cannot attack. Jetpack is cancelled upon casting Hookshot.
Cast Animation: 0+0.53
Turn Rate in Degrees per Second: 75°
Move Speed Bonus: 20%
Duration: 6
Cooldown: 16
Mana: 75
Modifiers [?]
Ability Draft Notes
Ability Draft Notes:
Upgradable by Aghanim's Shard.
Requires drafting Hookshot to be unlocked.


  • While Jetpack is active, the caster does not need to turn to cast abilities or items.
  • For better readability, the turn rate during the flight is given as degrees per second, instead of radians per 0.03 seconds.
    • 75° per second equal a turn rate of 0.039.
  • Clockwerk turns for a maximum of 1 second per issued move order. This means a single move order does not cause him to fly in a circle around the targeted point.
    • Clockwerk's final path and direction pre-move order depends on a vector from his position to the targeted point, which is always parallel with the path.
  • Clockwerk is not disabled while flying and can use any items and abilities normally.
    • Casting Hookshot ends Jetpack if it latches on a target and starts pulling. Does not end it if it misses.
  • The flight speed equals the caster's current movement speed.

Hookshot icon.png
Allies / Enemies
Fires a grappling device rapidly at the target location. If the hook hits a unit, Clockwerk launches himself into the target, stunning and dealing damage. Any enemies Clockwerk collides with along the way are damaged and stunned.
Cast Animation: 0.3+0
Cast Range: 2000/2500/3000
Max Travel Distance: 2000/2500/3000
Hook Latch Radius: 125
Stun & Damage Radius: 175
Damage: 75/175/275
Stun Duration: 1.5/1.75/2
Cooldown: 60/45/30
Mana: 150
Upgradable by Aghanim's Scepter.
Aghanim's Scepter Upgrade:
Grants the Overclocking ability.
Upgradable by Aghanim's Shard.
Aghanim's Shard Upgrade:
Grants the Jetpack ability.
Modifiers [?]
A somewhat unwieldy device, the Hookshot sends the otherwise clunky Clockwerk armor flying through the air.


  • The hook travels at a speed of 4000/5000/6000, taking a maximum of 2 seconds to reach max length.
  • As soon as the hook latches on a unit, Clockwerk is pulled towards the unit at the same speed as the hook itself.
    • Clockwerk gets pulled towards the latched unit's current location, and not towards the original location where the hook latched on it.
    • This means when the target moves or gets moved, Clockwerk's trajectory adapts immediately.
    • Clockwerk is silenced and disarmed during the pull. However, item abilities can be used.
    • The pulling lasts a maximum of 0.5 seconds, so if the target moves too far away, Clockwerk may not fully reach it.
    • The pull gets canceled when Clockwerk gets affected by other sources of Forced Movement.
  • The area damage and stun around Clockwerk always happens, regardless of whether the hook latched on an ally or enemy.
  • When latching on an ally, the ally is not disabled and can act freely. It is not interrupted either.
  • When latching on an enemy, it gets stunned for 1.5/1.75/2 seconds, or until Clockwerk reaches it.
    • This means if Clockwerk does not reach it, it is stunned for the full duration.
    • This can happen when either the pull gets canceled, or when the target gets moved too far away during the pull.
  • The latched enemy is also hit by the stun and area damage.
    • This means the latched target is stunned up to 0.5 seconds longer than secondary targets, due to the initial latch stun.
  • Hookshot first applies the debuff, then the damage.


Hero Talents
-0.25s Battery Assault Interval25Spell Immunity Inside Power Cogs
Power Cogs Leash Units Inside20 Rocket Flare True Sight
+24 Battery Assault Damage15+2 Power Cogs Hit To Kill
+60 Power Cogs Mana Burn10-2s Rocket Flare Cooldown

Recent Changes[]

Main Article: Clockwerk/Changelogs
Level 20 left talent changed: +100 Rocket Flare damage ➜ Power Cogs leashes units inside.
  • Increased armor from 0 to 1.
Level 10 left talent changed: +20 movement speed ➜ +60 Power Cogs mana loss.
Level 10 right talent changed: +5 armor ➜ -2s Rocket Flare cooldown.

Recommended Items[]

Starting items:

  • Tango icon.png Tango gives Clockwerk enough basic lane survivability through health regeneration. Depending on how much harass is expected in the offlane, more than one Tango may be advised.
  • Healing Salve icon.png Healing Salve also restores health to Clockwerk.
  • Iron Branch icon.png Iron Branch gives Clockwerk cheap attributes, increasing health, armor, attack speed, and mana.

Early game:

  • Boots of Speed icon.png Boots of Speed early on give Clockwerk enough movement speed to evade ganks by the enemy supports. They also allow him to chase with Battery Assault and get early kills against squishy supports if he can single them out.
  • Urn of Shadows icon.png Urn of Shadows is a very useful utility item on a roaming Clockwerk in place of a Bracer. The strength gives him more HP and base damage, while the mana regen helps with his casting. The active can be used to deal more damage to an enemy during a gank, or heal yourself or allies afterward.

Mid game:

  • Magic Wand icon.png Magic Wand gives Clockwerk some stats, and allows him to replenish some HP and mana instantly. The former is useful for giving him more HP after casting Hookshot to initiate on the enemy, extending his survivability, while the latter can give him enough mana to cast any of his spells in an emergency.
  • Phase Boots icon.png Phase Boots give Clockwerk more mobility, allowing him to get in position to cast his spells or chase an enemy more easily with Battery Assault.
  • Arcane Boots icon.png Arcane Boots can be useful to purchase on a utility Clockwerk who is dependent on casting spells and using item abilities. Clockwerk's main weakness is his small mana pool, so alleviating that allows him to cast his spells more often.
  • Blade Mail icon.png Blade Mail is arguably Clockwerk's most important item. The armor gives him more survivability against physical damage when initiating with Hookshot and the damage gives him more damage output. The active allows him to use his HP pool offensively by punishing the enemy for focusing him, and can buy him survivability if the enemy avoids targeting him while the item is active.
  • Force Staff icon.png Force Staff gives Clockwerk an extra tool for more mobility on top of the highly beneficial intelligence, allowing him to quickly close the gap to cast Power Cogs or Battery Assault, or escape from unpleasant situations. Its most powerful use is to allow Clockwerk to escape from inside his own Power Cogs without having to destroy them, allowing him to trap dangerous melee enemies inside that could otherwise tear him apart with attacks.

Late game:

  • Aghanim's Scepter icon.png Aghanim's Scepter provides Clockwerk with the Overclocking ability which refreshes the cooldown of all of his spells in exchange of getting stunned after the buff expires.
  • Shiva's Guard icon.png Shiva's Guard increases the size of Clockwerk's mana pool, allowing him to cast spells more often, and greatly increases his survivability against physical damage. The active can be cast prior to using Hookshot, instantly applying the nuke damage and slow to the entire enemy team upon reaching your destination. the attack speed slow combined with battery assault makes it more difficult for high attack speed heroes to take out cogs and escape

Situational items:

  • Dust of Appearance icon.png Dust of Appearance is ideal for ganking invisible enemies, as Clockwerk's close promixity after initiation guarantees the debuff will be applied without guesswork. Remember that Battery Assault cannot hit invisible enemies.
  • Bottle (Full) icon.png Bottle is important on Clockwerk given his mobility, ability to roam around and gank targets, and small mana pool. As he can pick up runes while roaming, the regen lets him stay out on the field without having to return to base as often, allowing him to accomplish more for his team.
  • Drum of Endurance icon.png Drum of Endurance gives Clockwerk stats across the board, generally increasing his survivability as well as ability to cast spells. The movement speed also makes him more mobile, allowing him to position for spells or chase more easily.
  • Blink Dagger icon.png Blink Dagger drastically increases Clockwerk's mobility and gives him yet more initiating power. Clockwerk can blink on top of enemies to initiate rather than using Hookshot, or use the blink to quickly re-position himself for a clear line of fire for Hookshot.
  • Eul's Scepter of Divinity icon.png Eul's Scepter of Divinity gives Clockwerk a powerful amount of utility for a cheap support item. The extra movement speed helps Clockwerk to chase down enemies with Battery Assault, and the intelligence and mana regen allow him to cast his spells much more often. The active adds yet another disable to Clockwerk's repertoire, allowing him to disable another enemy after a Hookshot initiation or stopping someone in their tracks so that you can walk over and surround them with Power Cogs. As well, the active can be used on Clockwerk himself to give him temporary invulnerability while at the same time removing debuffs.
  • Orchid Malevolence icon.png Orchid Malevolence allows Clockwerk to gank more effectively and disable enemies with abilities like Rage or Ball Lightning.
  • Nullifier icon.png Nullifier allows Clockwerk to counter items like Glimmer Cape icon.png Glimmer Cape and Aeon Disk icon.png Aeon Disk.
  • Pipe of Insight icon.png Pipe of Insight allows Clockwerk to shield himself and his team from magical nukes, and gives him significantly more survivability after initiating with Hookshot as he can resist enemy magic nukes more easily.
  • Crimson Guard icon.png Crimson Guard is a good utility upgrade from Vanguard, as it gives Clockwerk additional armor for a modest buildup. The active can greatly help your team in fights, and drastically increases Clockwerk's survivability against physical damage during initiations.
  • Lotus Orb icon.png Lotus Orb is extremely strong on Clockwerk, as it serves many of the same purposes as Blade Mail. It gives Clockwerk regen and armor, increasing his durability and staying power. The active can be cast during Hookshot-Cog initiations to use the enemy's targeted spells against them if they decide to attempt to focus Clockwerk down.
  • Guardian Greaves icon.png Guardian Greaves is a strong boots item that gives Clockwerk strong survivability if upgraded from a Mekansm and Arcane Boots. The aura gives him increased survivability when initiating with Hookshot-Cog, particularly once its bonuses increase when his health drops below a certain threshold, and the self-dispel can remove debuffs from him, increasing his survivability.
  • Heart of Tarrasque icon.png Heart of Tarrasque greatly increases Clockwerk's HP pool and gives him some base damage. The greatly increased durability allows him to initiate without fear of being quickly destroyed by the enemy, which can allow him to make full use of his disables in a teamfight.
  • Radiance (Active) icon.png Radiance allows Clockwerk to inflict burn damage to the enemy during Hookshot initiations, as well as when chasing enemies down with Battery Assault. The induced miss chance also gives him and his team increased survivability against physical attacks, as all enemies affected by the burn will miss some of their attacks no matter who the attacks are directed at.






  • One of Clockwerk's death animations is a reference to the movie Terminator 2: Judgment Day.
  • An old competitive strategy that was used in DotA was sending a rocket flare over to the enemy fountain, and having Nature's Prophet minimap icon.png Nature's Prophet teleport to the enemy base and snipe the courier. This tactic has long been discontinued due to triggers being implemented to stop it.
  • The line "▶️ I'm lost... like gears in the rain." (death line) is a reference to the movie Blade Runner.
  • The line "▶️ Some assembly required" (spawn line) is a reference to a song of the same name composed by Mike Morasky, for the game Portal 2, another game made by Valve.
  • The line "▶️ I'm the six million gold piece man!" (respawn line) is a reference to the American television series The Six Million Dollar Man.
  • The line "▶️ The turtle wins the race" (move line) is a reference to one of Zeno's Paradoxes named Achilles and the tortoise.