Alchemist

Strength ・ Melee ・ Easy

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

Patch 7.41f 2026-09-15 released ・ Game data Client 6957(Oct 09 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 21s Mana 120 Range 900 PHYSICAL
ActiveCooldown21sMana120Range900

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)
RADIUS 350 / 400 / 450 / 500
DURATION 15
DAMAGE PER SECOND 25 / 30 / 35 / 40
ARMOR REDUCTION 3 / 4 / 5 / 6
tick_rate 1.0
Patch history
7.41c 2026-05-06
  • Cooldown rescaled from 22/21/20/19s to 21s
7.40 2025-12-15
  • Mana Cost increased from 105/110/115/120 to 120

Unstable Concoction

Cooldown 17s Mana 100 Range 775 PHYSICAL
ActiveCooldown17sMana100Range775

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_time 5.0
brew_explosion 5.5
min_stun 0.25
MAX STUN 1.7 / 2.2 / 2.7 / 3.2
MAX DAMAGE 150 / 220 / 290 / 360
EXPLOSION RADIUS 250
MOVE SPEED BONUS 4 / 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 Weaponry Passive

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 STACKS 7 / 10 / 13 / 16
DEBUFF DURATION 4.0
MOVEMENT SLOW PER STACK 2.5 / 3 / 3.5 / 4
BASE ATTACK DAMAGE REDUCTION PER STACK 2.5 / 3 / 3.5 / 4
stacks_per_attack 2
one_tooltip 1
Patch history
7.41 2026-03-24
  • 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 35s Mana 100 Range 800
ActiveCooldown35sMana100Range800

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)
DURATION 15
ATTACK SPEED 50
HP REGEN 40
projectile_speed 900
MOVE SPEED 30

Greevil's Greed Innate Passive

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 WINDOW 40
bonus_gold 2
BASE BONUS GOLD 2
EXTRA BONUS GOLD 2
bonus_gold_per_scepter 3
BOUNTY RUNE MULTIPLIER 2
bonus_gold_cap 16
MAX BONUS GOLD PER KILL 16
scepter_bonus_damage 15
Patch history
7.41c 2026-05-06
  • Bonus base/max Extra Gold per melted Scepter decreased from +6 to +3
7.41a 2026-03-27
  • Max Bonus Gold Per Kill decreased from 18 to 16
  • Bonus Damage per Scepter decreased from +25 to +15
7.41 2026-03-24
  • Aghanim's Scepter now also increases Base Bonus Gold and Max Bonus Gold per kill by 6 per melted Aghanim's Scepter Aghanim's Scepter

Chemical Rage

Cooldown 60.0s Mana 50 / 75 / 100
ActiveCooldown60.0sMana50 / 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)
DURATION 30
transformation_time 0.35
BASE ATTACK TIME 1.2 / 1.1 / 1.0
BONUS HEALTH REGEN 50 / 85 / 120
BONUS MOVE SPEED 20 / 30 / 40
  • Has a 0.35 second transformation time, which can be used to dodge projectiles and stuns.
Patch history
7.41c 2026-05-06
  • Bonus Health Regen decreased from 60/90/120 to 50/85/120

Unstable Concoction Throw

Range 775
ActiveRange775

Throw it before it blows up!

Raw values (from the game files)(7)
brew_time 5.0
min_stun 0.25
max_stun 1.75 / 2.25 / 2.75 / 3.25
max_damage 150 / 220 / 290 / 360
projectile_speed 900
midair_explosion_radius 250
brew_explosion 7.0

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 Reduction Greevil'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)

7.41b 2026-04-07
  • 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
7.41a 2026-03-27
  • Base movement speed decreased from 295 to 290
7.41 2026-03-24
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
7.40 2025-12-15
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