Dota 2

Alchemist

Strength melee hero, often played as a carry, support or tank.

Alchemist
Strength

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Full history

Until you pick a month the page shows every change. Pick the month you last played to keep only what is new to you. The date is shared by every hero page.

Since you last played

Heavily adjusted

152 lines of changes across 51 patches, condensed below to the ones that still matter.

48 buffs and 34 nerfs in total: roughly even.

Biggest ability changes

  • ▲
    Acid Spray Cooldown rescaled from 22/21/20/19s to 21sadjusted 15 times across 9 patches, net buff
  • ▲
    Corrosive Weaponry Base Attack Damage Reduction per stack increased from 2/2.5/3/3.5% to 2.5/3/3.5/4%adjusted 20 times across 9 patches, net buff
  • ▲
    Unstable Concoction Now applies 1 Corrosive Weaponry stack per second of brew timeadjusted 12 times across 10 patches, net buff
  • ▼
    Greevil's Greed Max Bonus Gold Per Kill decreased from 18 to 16adjusted 20 times across 14 patches, net nerf
  • ▲
    Chemical Rage Bonus Health Regen decreased from 60/90/120 to 50/85/120adjusted 15 times across 14 patches, net buff
  • ▲
    Berserk Potion Duration increased from 10s to 15sadjusted 2 times across 2 patches, net buff

Innate

  • ◆
    Greevil's Greed Remains as an Innate ability. Passive, can't be leveled up

Aghanim’s upgrades

  • ▲
    Scepter Bonus base/max Extra Gold per melted Scepter decreased from +6 to +3changed 10 times, latest shown
  • ▲
    Shard Shard Mana Cost reduced from 125 to 100changed 2 times, latest shown

Base stats

  • ◆
    Base Agility decreased from 22 to 19adjusted 2 times across 2 patches, roughly even
  • ▲
    Strength gain increased from 2.7 to 2.9adjusted 2 times across 2 patches, net buff
  • ◆
    Base movement speed decreased from 295 to 290adjusted 2 times across 2 patches, roughly even
  • ▼
    Base Movement Speed decreased from 300 to 295adjusted 2 times across 2 patches, net nerf
Talents changed
  • ◆
    Lv10 talent +1 Acid Spray Armor Reduction replaced with +1% Corrosive Weaponry Slow / Damage Reduction Per Stack
  • ◆
    Lv15 talent +1% Corrosive Weaponry Slow / Damage Reduction Per Stack replaced with +1 Acid Spray Armor Reduction
  • ◆
    Lv20 talent +25% Cleave replaced with -0.1s Chemical Rage Base Attack Time
  • ◆
    Lv25 talent increased from +40 Chemical Rage Regen to +50

Facets were part of the game from 7.36 and were removed in 7.41. Alchemist had 6 facet changes in between.

Most recent change patch 7.41c, May 2026

  • ▼
    Greevil's Greed Bonus base/max Extra Gold per melted Scepter decreased from +6 to +3
  • ◆
    Acid Spray Cooldown rescaled from 22/21/20/19s to 21s
  • ▼
    Chemical Rage Bonus Health Regen decreased from 60/90/120 to 50/85/120
Current abilities
  • Acid SpraySprays high-pressure acid across a target area. Enemy units who step across the contaminated terrain take damage per second and have their armor reduced.
  • Unstable ConcoctionAlchemist 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 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.
  • Corrosive WeaponryAlchemist 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.
  • Berserk PotionAlchemist throws a potion at an ally, applying a basic dispel and giving them attack speed, movement speed and HP regen. DISPEL TYPE: Basic Dispel
  • Greevil's Greed innateAlchemist 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.
  • Chemical RageAlchemist causes his Ogre to enter a chemically induced rage, reducing base attack cooldown and increasing movement speed and health regeneration. DISPEL TYPE: Basic Dispel
  • Unstable Concoction ThrowThrow it before it blows up!

What players buy on Alchemist

Starting items

Early game

Mid game

Late game

Most bought first, from item purchases in recent professional matches (OpenDota, Nov 2026). Public games can differ.

Every Alchemist change, patch by patch

All 152 changes Valve listed for Alchemist since patch 7.06d, newest first. Last changed in 7.41c (May 2026).

Patch 7.41c

  • ▼
    Greevil's Greed Bonus base/max Extra Gold per melted Scepter decreased from +6 to +3
  • ◆
    Acid Spray Cooldown rescaled from 22/21/20/19s to 21s
  • ▼
    Chemical Rage Bonus Health Regen decreased from 60/90/120 to 50/85/120

Patch 7.41b

  • ▼
    Base stats Base Agility decreased from 22 to 19
  • ◆
    Lv10 talent Level 10 Talent +1 Acid Spray Armor Reduction replaced with +1% Corrosive Weaponry Slow / Damage Reduction Per Stack
  • ◆
    Lv15 talent Level 15 Talent +1% Corrosive Weaponry Slow / Damage Reduction Per Stack replaced with +1 Acid Spray Armor Reduction

Patch 7.41a

  • ▼
    Base stats Base movement speed decreased from 295 to 290
  • ▼
    Greevil's Greed Max Bonus Gold Per Kill decreased from 18 to 16
  • ▼
    Greevil's Greed Bonus Damage per Scepter decreased from +25 to +15

Patch 7.41

  • ◆
    Greevil's Greed Aghanim's Scepter now also increases Base Bonus Gold and Max Bonus Gold per kill by 6 per melted Aghanim's Scepter
  • ▲
    Corrosive Weaponry Movement Slow per stack increased from 2/2.5/3/3.5% to 2.5/3/3.5/4%
  • ▲
    Corrosive Weaponry Base Attack Damage Reduction per stack increased from 2/2.5/3/3.5% to 2.5/3/3.5/4%
  • ▲
    Lv10 talent Level 10 Talent Unstable Concoction Radius increased from +125 to +150
  • ▲
    Lv15 talent Level 15 Talent Damage per Greevil's Greed stack increased from +2.5 to +3
  • ◆
    Lv15 talent Level 15 Talent Acid Spray grants armor to allies replaced with +1% Corrosive Weaponry Slow/Damage Reduction Per Stack

Patch 7.40

  • ▼
    Acid Spray Mana Cost increased from 105/110/115/120 to 120
  • ▲
    Lv15 talent Level 15 Talent Damage per Greevil's Greed stack increased from +2 to +2.5

Patch 7.39

  • ▼
    Facet GPM per Aghanim's Scepter decreased from +75 to +70
  • ▼
    Corrosive Weaponry Max Stacks decreased from 10/12/14/16 to 7/10/13/16
  • ▲
    Corrosive Weaponry Movement Slow per stack increased from 1.5/2/2.5/3% to 2/2.5/3/3.5%
  • ▲
    Corrosive Weaponry Base Attack Damage Reduction per stack increased from 1.5/2/2.5/3% to 2/2.5/3/3.5%

Patch 7.38c

  • ◆
    Corrosive Weaponry Unstable Concoction stack count per second of brew time now rounds up to the nearest second (minimum 1 stack)

Patch 7.38b

  • ▼
    Greevil's Greed Gifting Aghanim's Scepters no longer provides Spell Amplification

Patch 7.38

  • ◆
    Aghanim's upgrade Aghanim's Scepter granting moved from Chemical Rage to Greevil's Greed
  • ◆
    Facet Alchemist gains +75 GPM for each Aghanim's Scepter he has granted to allies
  • ◆
    Facet Alchemist consuming his own Aghanim's Scepter will grant Dividends
  • ▲
    Greevil's Greed Aghanim's Scepter granting range increased from 600 to Global
  • ◆
    Greevil's Greed Aghanim's Scepter granting is now announced to all allies and spectators
  • ▼
    Acid Spray Radius decreased from 400/475/550/625 to 350/400/450/500
  • ▲
    Acid Spray Now applies 1 Corrosive Weaponry stack with each tick of damage
  • ▲
    Unstable Concoction Now applies 1 Corrosive Weaponry stack per second of brew time
  • ◆
    Corrosive Weaponry Stacks are also applied when enemies take damage from Alchemist's spells. Acid Spray applies 1 stack per second. Unstable Concoction applies 1 stack per second of brew time
  • ▲
    Corrosive Weaponry Stacks per attack increased from 1 to 2
  • ▲
    Corrosive Weaponry Max Stacks increased from 4/6/8/10 to 10/12/14/16
  • ▼
    Corrosive Weaponry Movement Slow per stack decreased from 4/5/6/7% to 1.5/2/2.5/3%
  • ▼
    Corrosive Weaponry Base Attack Damage Reduction per stack decreased from 3/4/5/6% to 1.5/2/2.5/3%
  • ▼
    Chemical Rage Bonus Move Speed decreased from 30/45/60 to 20/30/40

Patch 7.37e

  • ▼
    Facet Cooldown reduction increased from 30% to 35%
  • ◆
    Acid Spray Mana Cost rescaled from 110 to 105/110/115/120
  • ▼
    Unstable Concoction Cooldown increased from 15s to 17s

Patch 7.37b

  • ▲
    Greevil's Greed Recent Kill Window increased from 36s to 40s
  • ▲
    Berserk Potion Duration increased from 10s to 15s

Patch 7.36

  • ▲
    Base stats Base Attack Speed increased from 100 to 110
  • ◆
    Greevil's Greed Remains as an Innate ability. Passive, can't be leveled up
  • ◆
    Facet Alchemist starts with 250 bonus gold
  • ◆
    Facet Decreases Berserk Potion cooldown by 50% and Unstable Concoction by 30% for the duration of Chemical Rage
  • ▼
    Corrosive Weaponry No longer reduces Status Resistance by 3/4/5/6% per stack
  • ◆
    Corrosive Weaponry Now reduces Base Attack Damage by 3/4/5/6% per stack
  • ▼
    Corrosive Weaponry Stats are no longer multiplied during Chemical Rage
  • ▲
    Chemical Rage Bonus Health Regen increased from 50/80/110 to 60/90/120

Patch 7.35b

  • ▲
    Corrosive Weaponry Movement Slow per stack increased from 3/4/5/6% to 4/5/6/7%

Patch 7.35

  • ▲
    Acid Spray Mana Cost decreased from 120 to 110
  • ▲
    Corrosive Weaponry Debuff Duration increased from 3.5s to 4s

Patch 7.34b

  • ▲
    Base stats Base Armor increased by 1
  • ▲
    Chemical Rage Bonus Move Speed increased from 20/40/60 to 30/45/60

Patch 7.34

  • ▼
    Corrosive Weaponry Max Stacks decreased from 5/7/9/11 to 4/6/8/10
  • ▲
    Corrosive Weaponry Movement Slow and Status Resistance Reduction per stack is now increased by 1.5% whenever Alchemist is in Chemical Rage

Patch 7.33c

  • ▼
    Base stats Base Movement Speed decreased from 300 to 295
  • ▼
    Unstable Concoction Cooldown increased from 13s to 15s
  • ▼
    Greevil's Greed Base Bonus Gold decreased from +3 to +2
  • ▼
    Greevil's Greed Extra Bonus Gold decreased from +3 to +2
  • ▼
    Chemical Rage Bonus Movement Speed decreased from 40/50/60 to 20/40/60
  • ▼
    Lv15 talent Level 15 Talent Damage per Greevil's Greed stack decreased from +3 to +2

Patch 7.33b

  • ▼
    Base stats Base Movement Speed reduced from 305 to 300
  • ▼
    Acid Spray Radius decreased from 475/525/575/625 to 400/475/550/625
  • ▲
    Acid Spray Armor reduction reduced from 4/5/6/7 to 3/4/5/6

Patch 7.33

  • ▲
    Acid Spray Cast Point improved from 0.2s to 0.1s
  • ▲
    Acid Spray Cooldown decreased from 22s to 22/21/20/19s
  • ▲
    Acid Spray Mana Cost decreased from 130 to 120
  • ▼
    Acid Spray Duration decreased from 16s to 15s
  • ▲
    Acid Spray Damage per second increased from 20/25/30/35 to 25/30/35/40
  • ▼
    Unstable Concoction Max Stun Duration decreased from 2.2/2.8/3.4/4s to 1.7/2.2/2.7/3.2s
  • ▼
    Unstable Concoction Info Duration decreased as a part of the comprehensive Disables Reduction
  • ◆
    Greevil's Greed Now an innate ability
  • ◆
    Greevil's Greed Max Bonus Gold per kill rescaled from 15/18/21/24 to 18
  • ◆
    Greevil's Greed Bounty Rune Multiplier rescaled from 1.8/2.2/2.6/3 to 2
  • ◆
    Corrosive Weaponry New basic passive ability
  • ◆
    Corrosive Weaponry Attacks apply a stacking debuff on enemies that reduces movement speed by 3/4/5/6% and status resistance by 3/4/5/6% per stack. Applying a new stack refreshes the duration. Has no effect on buildings or Roshan. Max Stacks: 5/7/9/11. Debuff Duration: 3.5s
  • ▲
    Chemical Rage Bonus Health Regen increased from 50/75/100 to 50/80/110
  • ▲
    Lv15 talent Level 15 Talent Damage per Greevil's Greed stack increased from +1.5 to +3

Patch 7.32e

  • ▲
    Unstable Concoction Max Stun Duration increased from 1.75/2.5/3.25/4s to 2.2/2.8/3.4/4s
  • ▲
    Chemical Rage Bonus Damage per Scepter increased from 20 to 25

Patch 7.32d

  • ▲
    Acid Spray Mana Cost decreased from 130/140/150/160 to 130
  • ▲
    Greevil's Greed Bounty Rune multiplier increased from 1.5/2/2.5/3 to 1.8/2.2/2.6/3
  • ▲
    Lv15 talent Level 15 Talent Damage per Greevil’s Greed stack increased from +1 to +1.5

Patch 7.32b

  • ▼
    Base stats Strength reduced from 25 + 2.9 to 23 + 2.7
  • ▼
    Unstable Concoction Bonus Movement Speed reduced from 5/10/15/20% to 4/8/12/16%

Patch 7.32

  • ▲
    Aghanim's upgrade Giving an Aghanim's Scepter to an ally now grants Alchemist bonus Damage and Spell Amplification even if Alchemist doesn't have one yet
  • ◆
    Lv10 talent Level 10 Talent +15 Attack Speed replaced with +1 Acid Spray Armor Reduction
  • ◆
    Lv15 talent Level 15 Talent +350 Health replaced with Acid Spray Also Grants Armor to Allies
  • ◆
    Lv15 talent Level 15 Talent +20 Damage replaced with +1 Damage per Greevil's Greed Stack (Max 24 damage)
  • ◆
    Lv20 talent Level 20 Talent +25% Cleave replaced with -0.1s Chemical Rage Base Attack Time

Patch 7.31d

  • ▲
    Berserk Potion Shard Mana Cost reduced from 125 to 100
  • ▲
    Chemical Rage Duration increased from 25s to 30s
  • ▼
    Chemical Rage Cooldown increased from 55s to 60s

Patch 7.31

  • ◆
    Unstable Concoction Grants Alchemist 5/10/15/20% movement speed while charging
  • ◆
    Unstable Concoction Explosion now damages enemy creeps within its radius

Patch 7.30e

  • ▲
    Base stats Strength gain increased from 2.7 to 2.9

Patch 7.30c

  • ◆
    Base stats Base Damage rescaled from 49-58 to 52-58
  • ◆
    Chemical Rage Mana Cost from 50/100/150 to 50/75/100

Patch 7.30

  • ▲
    Unstable Concoction Cooldown reduced from 16s to 13s
  • ◆
    Unstable Concoction Mana Cost rescaled from 90/100/110/120 to 100
  • ◆
    Berserk Potion Now additionally grants 30 bonus movement speed
  • ◆
    Lv10 talent Level 10 Talent -6s Unstable Concoction Cooldown replaced with +125 Unstable Concoction Radius

Patch 7.29

  • ▼
    Greevil's Greed Gold bonus cap reduced from 18/21/24/27 to 15/18/21/24

Patch 7.28b

  • ▲
    Berserk Potion Shard cooldown reduced from 45 to 35

Patch 7.28a

  • ▼
    Greevil's Greed Stack duration reduced from 40 to 36

Patch 7.27b

  • ▲
    Unstable Concoction Radius increased from 200 to 250
  • ▲
    Lv20 talent Level 20 Talent increased from +350 Unstable Concoction to +400
  • ▲
    Lv25 talent Level 25 Talent increased from +40 Chemical Rage Regen to +50

Patch 7.26c

  • ▼
    Lv10 talent Level 10 Talent reduced from +20 Attack Speed to +15
  • ▲
    Lv10 talent Level 10 Talent increased from -5.5s Unstable Concoction Cooldown to -6s
  • ▼
    Lv15 talent Level 15 Talent reduced from +25 Damage to +20
  • ▲
    Lv15 talent Level 15 Talent increased from +325 Health to +350
  • ▲
    Lv20 talent Level 20 Talent increased from +325 Unstable Concoction Damage to +350

Patch 7.26a

  • ▼
    Greevil's Greed Cap reduced from 20/24/28/32 to 18/22/26/30
  • ▼
    Greevil's Greed Base gold bonus reduced from 4 to 3
  • ▼
    Greevil's Greed Bounty Rune multiplier reduced from 2/2.5/3/3.5 to 1.5/2/2.5/3

Patch 7.25

  • ▲
    Base stats Agility gain increased from 1.2 to 1.5

Patch 7.24

  • ▲
    Base stats Strength gain increased from 2.4 to 2.7

Patch 7.22g

  • ▼
    Greevil's Greed Gold bonus per stack reduced from 4 to 3
  • ▼
    Chemical Rage No longer provides mana regeneration
  • ▼
    Lv15 talent Level 15 Talent reduced from +50 Damage to +30
  • ▼
    Lv25 talent Level 25 Talent reduced from -0.2 Chemical Rage Base Attack Time to -0.15

Patch 7.22

  • ▲
    Aghanim's upgrade Added Scepter upgrade. With Scepter equipped or synthesized, you gain a bonus +30 Damage and +6% Spell Amp for each Scepter that you gave allies at any point in the game.

Patch 7.21c

  • ▲
    Acid Spray Radius increased from 400/475/550/625 to 475/525/575/625

Patch 7.21

  • ▲
    Base stats Base movement speed increased by 10
  • ▲
    Base stats Base agility increased from 16 to 22
  • ▲
    Chemical Rage Base attack time improved from 1.3/1.15/1.0 to 1.2/1.1/1.0
  • ▼
    Lv10 talent Level 10 Talent reduced from -8s Unstable Concoction to -7s
  • ◆
    Lv20 talent Level 20 Talent Concoction talent now adds the damage to the max instead of the base

Patch 7.19b

  • ◆
    Greevil's Greed Bounty rune multiplier rescaled from 3.5x to 2/2.5/3/3.5x

Patch 7.18

  • ▲
    Greevil's Greed Gold Bonus Cap increased from 16/20/24/28 to 20/24/28/32
  • ▲
    Greevil's Greed Stack Duration increased from 30 to 40

Patch 7.17

  • ▲
    Chemical Rage Now applies a basic dispel on cast

Patch 7.16

  • ▲
    Greevil's Greed Bounty rune multiplier increased from 3 to 3.5

Patch 7.14

  • ▲
    Greevil's Greed Bounty Runes bonus gold increased from 2.5 to 3x
  • ▲
    Chemical Rage Health regen increased from 40/48/56 to 40/55/70

Patch 7.10

  • ▲
    Lv20 talent Level 20 Talent increased from +25% Cleave to +30%

Patch 7.08

  • ▲
    Chemical Rage Chemical Rage base attack time improved from 1.4/1.2/1.0 to 1.3/1.15/1.0
  • ▲
    Lv10 talent Level 10 Talent increased from -5s Unstable Concoction Cooldown to -8s
  • ▲
    Lv15 talent Level 15 Talent increased from +350 Health to +400
  • ▲
    Lv20 talent Level 20 Talent increased from +360 Unstable Concoction to +400

Patch 7.07d

  • ▲
    Unstable Concoction Unstable Concoction damage increased from 150/220/290/360 to 160/240/320/400

Patch 7.07c

  • ◆
    Lv10 talent Level 10 Talent changed from +5 Armor to -5s Unstable Concoction Cooldown
  • ▲
    Lv15 talent Level 15 Talent increased from +250 Health to +350 Health
  • ▲
    Lv20 talent Level 20 Talent increased from +200 Unstable Concoction Damage to +360
  • ◆
    Lv25 talent Level 25 Talent changed from -8s Unstable Concoction Cooldown to +30 Chemical Rage Regeneration

Patch 7.06e

  • ▲
    Base stats Base Agility increased from 11 to 16
  • ▲
    Greevil's Greed Greevil's Greed Bounty Rune multiplier increased from 2x to 2.5x

Patch 7.06d

  • ▲
    Chemical Rage Chemical Rage movement speed increased from 30/40/60 to 40/50/60
  • ▲
    Lv15 talent Level 15 Talent increased from +80 Unstable Concoction Damage to +100