Alchemist

Strength ・ Melee ・ Easy

Carry 2Support 1Durable 2Disabler 1Initiator 1Nuker 1

Patch 7.41f2026-09-15 released ・ Game data Client 6969(Oct 27 2026)

Stats

Attributes (base and gain per level)
  • Strength23 (+2.7/Lv)
  • Agility19 (+1.5/Lv)
  • Intelligence25 (+1.8/Lv)
Attack
  • Damage27–33
  • Base attack time1.7s
  • Base attack speed110
  • Attack range150
  • Attack point0.35s
  • Projectile speed900
Defense and movement
  • Base armor0
  • Magic resistance25%
  • Movement speed290
  • Turn rate0.6
  • Health regen0.25
  • Vision (day / night)1800 / 800

These are the base values written in the game files. Totals derived from attributes (HP, mana, armor) depend on engine-side formulas, so no estimated values are shown.

Recommended items

Items the in-game shop recommends for this hero (curated by Valve). These are not win-rate statistics.

Abilities

Acid Spray

Cooldown 21sMana 120Range 900PHYSICAL
ActiveCooldown 21sMana 120Range 900

Sprays high-pressure acid across a target area. Enemy units who step across the contaminated terrain take damage per second and have their armor reduced.

Raw values (from the game files)(5)
RADIUS350 / 400 / 450 / 500
DURATION15
DAMAGE PER SECOND25 / 30 / 35 / 40
ARMOR REDUCTION3 / 4 / 5 / 6
tick_rate1.0
Patch history
7.41c2026-05-06
  • Cooldown rescaled from 22/21/20/19s to 21s
7.402025-12-15
  • Mana Cost increased from 105/110/115/120 to 120

Unstable Concoction

Cooldown 17sMana 100Range 775PHYSICAL
ActiveCooldown 17sMana 100Range 775

Alchemist brews up an unstable concoction that he can throw at an enemy hero, to stun and deal damage in an area around the explosion. The longer the concoction brews, the more damage it deals and the longer the stun. Alchemist is faster while charging the concoction. After 5.0 seconds, the brew reaches its maximum damage and stun time. However, after 5.5 seconds, the concoction will explode on Alchemist himself if not thrown.

Raw values (from the game files)(7)
brew_time5.0
brew_explosion5.5
min_stun0.25
MAX STUN1.7 / 2.2 / 2.7 / 3.2
MAX DAMAGE150 / 220 / 290 / 360
EXPLOSION RADIUS250
MOVE SPEED BONUS4 / 8 / 12 / 16
  • While brewing, this ability is replaced by Unstable Concoction Throw. Alchemist can move and act normally while brewing.
  • A timer above Alchemist's head will indicate the remaining brew time. This timer is visible to enemies.
  • You can deny yourself with this skill.
  • Unstable Concoction cannot be disjointed and once thrown Unstable Concoction stops brewing.
  • Unstable Concoction explosion damages heroes and creeps.

Corrosive WeaponryPassive

Passive

Alchemist coats his weapons and empowers his spells with an acid that applies a stacking slow and base attack damage reduction to enemies hit. Attacks apply 2 stacks. Unstable Concoction applies 1 stack per second of brew time.

Raw values (from the game files)(6)
MAX STACKS7 / 10 / 13 / 16
DEBUFF DURATION4.0
MOVEMENT SLOW PER STACK2.5 / 3 / 3.5 / 4
BASE ATTACK DAMAGE REDUCTION PER STACK2.5 / 3 / 3.5 / 4
stacks_per_attack2
one_tooltip1
Patch history
7.412026-03-24
  • Movement Slow per stack increased from 2/2.5/3/3.5% to 2.5/3/3.5/4%
  • Base Attack Damage Reduction per stack increased from 2/2.5/3/3.5% to 2.5/3/3.5/4%

Berserk Potion

Cooldown 35sMana 100Range 800
ActiveCooldown 35sMana 100Range 800

Alchemist throws a potion at an ally, applying a basic dispel and giving them attack speed, movement speed and HP regen. DISPEL TYPE: Basic Dispel

Raw values (from the game files)(5)
DURATION15
ATTACK SPEED50
HP REGEN40
projectile_speed900
MOVE SPEED30

Greevil's GreedInnatePassive

Range 0
Passive

Alchemist synthesizes additional gold from his enemies and bounty runes. With each kill, Alchemist earns base bonus gold and extra bonus gold. If Alchemist kills another unit which yields gold within the next 40 seconds, an additional instance of Extra Bonus Gold is added to the total. Additionally, causes bounty runes to yield more gold.

Raw values (from the game files)(9)
RECENT KILL WINDOW40
bonus_gold2
BASE BONUS GOLD2
EXTRA BONUS GOLD2
bonus_gold_per_scepter3
BOUNTY RUNE MULTIPLIER2
bonus_gold_cap16
MAX BONUS GOLD PER KILL16
scepter_bonus_damage15
Patch history
7.41c2026-05-06
  • Bonus base/max Extra Gold per melted Scepter decreased from +6 to +3
7.41a2026-03-27
  • Max Bonus Gold Per Kill decreased from 18 to 16
  • Bonus Damage per Scepter decreased from +25 to +15
7.412026-03-24
  • Aghanim's Scepter now also increases Base Bonus Gold and Max Bonus Gold per kill by 6 per melted Aghanim's ScepterAghanim's Scepter

Chemical Rage

Cooldown 60.0sMana 50 / 75 / 100
ActiveCooldown 60.0sMana 50 / 75 / 100

Alchemist causes his Ogre to enter a chemically induced rage, reducing base attack cooldown and increasing movement speed and health regeneration. DISPEL TYPE: Basic Dispel

Raw values (from the game files)(5)
DURATION30
transformation_time0.35
BASE ATTACK TIME1.2 / 1.1 / 1.0
BONUS HEALTH REGEN50 / 85 / 120
BONUS MOVE SPEED20 / 30 / 40
  • Has a 0.35 second transformation time, which can be used to dodge projectiles and stuns.
Patch history
7.41c2026-05-06
  • Bonus Health Regen decreased from 60/90/120 to 50/85/120

Unstable Concoction Throw

Range 775
ActiveRange 775

Throw it before it blows up!

Raw values (from the game files)(7)
brew_time5.0
min_stun0.25
max_stun1.75 / 2.25 / 2.75 / 3.25
max_damage150 / 220 / 290 / 360
projectile_speed900
midair_explosion_radius250
brew_explosion7.0

Talents

Level 25+50 Chemical Rage Movement Speed+50 Chemical Rage Regeneration
Level 20-0.1s Chemical Rage Base Attack Time+400 Unstable Concoction Max Damage
Level 15+1 Acid Spray Armor ReductionGreevil's Greed provides +3 Damage per stack
Level 10+1% Corrosive Weaponry Slow / Damage Reduction Per Stack+150 Unstable Concoction Radius

One of the two per level is chosen. They appear in the order registered in the game files.

Patch history (hero and talents)

7.41b2026-04-07
  • Base Agility decreased from 22 to 19
Talents
  • Level 10 Talent +1 Acid Spray Armor Reduction replaced with +1% Corrosive Weaponry Slow / Damage Reduction Per Stack
  • Level 15 Talent +1% Corrosive Weaponry Slow / Damage Reduction Per Stack replaced with +1 Acid Spray Armor Reduction
7.41a2026-03-27
  • Base movement speed decreased from 295 to 290
7.412026-03-24
Talents
  • Level 10 Talent Unstable Concoction Radius increased from +125 to +150
  • Level 15 Talent Damage per Greevil's Greed stack increased from +2.5 to +3
  • Level 15 Talent Acid Spray grants armor to allies replaced with +1% Corrosive Weaponry Slow/Damage Reduction Per Stack
7.402025-12-15
Talents
  • Level 15 Talent Damage per Greevil's Greed stack increased from +2 to +2.5

Background

The sacred science of Chymistry was a Darkbrew family tradition, but no Darkbrew had ever shown the kind of creativity, ambition, and recklessness of young Razzil. However, when adulthood came calling he pushed aside the family trade to try his hand at manufacturing gold through Alchemy. In an act of audacity befitting his reputation, Razzil announced he would transmute an entire mountain into gold. Following two decades of research and spending and preparation, he failed spectacularly, quickly finding himself imprisoned for the widespread destruction his experiment wrought. Yet Razzil was never one to take a setback lightly, and sought escape to continue his research. When his new cellmate turned out to be a fierce ogre, he found just the opportunity he needed. After convincing the ogre not to eat him, Razzil set about carefully concocting a tincture for it to drink, made from the moulds and mosses growing in the prison stone work. In a week's time, it seemed ready. When the ogre drank the potion, it flew into an unstoppable berserker rage, destroying the cell bars and exploding through walls and guards alike. They soon found themselves lost somewhere in the forest surrounding the city with a trail of wreckage in their wake and no signs of pursuit. In the tonic's afterglow, the ogre seemed serene, happy, and even eager. Resolving to work together, the pair set off to collect the materials needed to attempt Razzil's Alchemic transmutation once more.

Details

Internal namenpc_dota_hero_alchemist
Hero ID73
Aliases / search termsRazzil, Alchemist, アルケミスト, あるけみすと, arukemisuto, ラジル, らじる, rajiru