Alchemist

Alchemist is picked across five different roles almost evenly — carry, offlane, mid, support, hard support all sit within a few percentage points of each other in win rate — and that's unusual for a hero whose whole identity is generating gold. The read most players miss: Greevil's Greed isn't really about Alchemist's own net worth, it's about how fast the rest of the team's items come online when he melts his Scepter for them. Below is the current 7.41e patch, the build paths worth running, and the picks that actually slow him down.

Role and Position Alchemist Plays

Alchemist splits fairly evenly across roles: 31.1% of his games are carry, 22.6% offlane, 19.7% mid, and the rest support or hard support — a spread few heroes can match without losing effectiveness in any of them.

When to pick Alchemist:

• your team wants a farming hero who can also share item power through Greevil's Greed's Aghanim's Scepter melt;
• the draft benefits from a stun that also slows and reduces enemy attack damage (Unstable Concoction plus Corrosive Weaponry);
• the game plan leans on a durable core who transitions from farm to fights without a full item timing dependency.

When to skip him:

• the enemy has strong burst or lockdown that punishes Alchemist before Chemical Rage or a core item comes online;
• your draft already has a gold-generation hero and doesn't need a second;
• the map calls for mobility Alchemist doesn't naturally have.

Alchemist's Strengths

• Greevil's Greed snowballs Alchemist's net worth on kills and bounty runes, and can redirect that value to a teammate by melting Aghanim's Scepter;
• Unstable Concoction is a long-range stun that scales in damage and duration the longer it brews, punishing greedy positioning;
• Corrosive Weaponry stacks a slow and attack-damage reduction on every hit, wearing down enemy carries in extended fights;
• Chemical Rage gives Alchemist a faster attack speed, movement speed, and strong health regeneration whenever it's needed;
• Berserk Potion (Aghanim's Shard) extends that same buff package to an ally, making Alchemist useful even when he isn't the one fighting.

Alchemist's Weaknesses

• no natural escape or gap-closer — once caught, Alchemist has to fight his way out or die;
• Unstable Concoction telegraphs itself while brewing, giving opponents time to juke or disjoint it;
• relies on Chemical Rage's timing window — engaging without it active is a much weaker fight;
• base movement speed was cut in 7.41a, making rotations slower than other core heroes;
• value depends heavily on kill participation for Greevil's Greed to snowball, which struggles in a passive game.

Alchemist's Abilities

Greevil's Greed (innate, passive) — earns bonus gold on kills, with an extra stack if another kill lands within 40 seconds, and boosts bounty rune gold. With Aghanim's Scepter, Alchemist can melt it to grant an ally all of its upgrades plus bonus damage and gold for himself.

Acid Spray (Q) — sprays a target area with acid, dealing damage per second and reducing armor for anyone standing in it — strong for both farming and area denial.

Unstable Concoction (W) — brews a throwable stun that grows in damage and stun duration the longer it charges, up to a 3.2-second stun and 360 damage at max brew, but detonates on Alchemist himself if held past 5.5 seconds.

Corrosive Weaponry (passive) — attacks and Unstable Concoction's brew time stack a slow and base attack damage reduction on the target, up to 16 stacks.

Chemical Rage (ultimate) — reduces Alchemist's attack cooldown and boosts movement speed and health regeneration for 30 seconds, with a short transformation window that can dodge incoming stuns or projectiles.

Berserk Potion (granted by Aghanim's Shard) — throws a dispel-and-buff potion at an ally, giving them attack speed, movement speed, and HP regen for 15 seconds.

Build, Items, and Strategies

Skill order: start Acid Spray for wave clear and harass, take an early Unstable Concoction for the stun, and level Chemical Rage at every opportunity.

Talents: the level 10 pick trades +1% Corrosive Weaponry slow/damage reduction per stack against +150 Unstable Concoction radius — favor the slow stack if fights are close-range, the radius if the stun needs to land from further out.

Starting items: Quelling Blade and a stack of regen — Alchemist wants to hit the jungle or lane as fast as possible.

Farming build — when the priority is maximum net worth: Battle Fury for jungle clear speed, into a defensive item once the core farming item is secured.

Fighting build — when Alchemist needs to hold his own in skirmishes early: a faster Black King Bar timing, using Chemical Rage's dodge window to buy the extra seconds needed to close in.

Reactive items: Black King Bar to fight through disables, and a positioning item like Blink Dagger or Force Staff since Alchemist has none built in.

Pro tip: brew Unstable Concoction while moving toward the fight rather than standing still — the charge time isn't wasted if it doubles as your approach.

Footnote: build order flexes heavily around whether Alchemist is played as a fast-farming carry or a mid-game fighting core.

Timings, Roshan, and Power Spikes

0–10 minutes: farm efficiently with Acid Spray, saving Unstable Concoction for a clean stun rather than trading it for a contested kill.

10–20 minutes: first power spike — Chemical Rage online turns Alchemist into a real fighting threat, not just a farmer.

20–35 minutes: second power spike — once the core farming item lands, Alchemist starts closing the net-worth gap on the enemy carry fast.

Roshan window: Chemical Rage's attack speed and regen make Alchemist one of the stronger solo or semi-solo Roshan takers among cores.

35+ minutes: lean on Corrosive Weaponry's stacking slow to keep enemy carries in range during extended fights.

Footnote: Alchemist's timings shift earlier when the game plan is built around denying the enemy's farm rather than maximizing his own.

Alchemist Counters

• Silencer is a strong answer: Global Silence shuts down Unstable Concoction's threat and prevents Chemical Rage from being activated when it's needed most.
• Anti-Mage: Mana Break and Blink let him dodge the brewing stun and punish Alchemist's mana pool directly.
• Storm Spirit: Ball Lightning closes distance before Unstable Concoction finishes brewing, denying the stun entirely.
• Bloodseeker: Rupture punishes any attempt to retreat once Chemical Rage's window ends.
• Sniper and other long-range heroes: they can kite Alchemist's short attack range without ever entering Acid Spray or Unstable Concoction's threat zone.
• Axe: Berserker's Call locks Alchemist down exactly when Chemical Rage would otherwise let him fight back.

Where Alchemist is strong on his own: against slower, less mobile drafts, where his net worth and item timings simply outscale the opponent by the mid-game.

Footnote: most of these counters work by beating Alchemist to the punch — mobility and burst matter more against him than raw damage.

Synergies with Other Heroes

• Enigma: Black Hole holds enemies in place for a guaranteed Unstable Concoction stun on top.
• Tidehunter: Ravage groups the enemy team into Acid Spray's damage-over-time zone.
• Any hero with an Aghanim's Scepter power spike: Greevil's Greed's melt ability accelerates that spike by an entire item earlier than normal.
• Crystal Maiden: her mana aura keeps Alchemist casting Acid Spray and Unstable Concoction without downtime.
• Io: Relocate can safely reposition Alchemist into a fight where Chemical Rage does the most damage.

These pairings work best when the ally can follow up on the stun immediately — Unstable Concoction's window closes fast once it lands.

What Experienced Alchemist Players Do

• brew Unstable Concoction on the move to disguise the charge time as normal rotation;
• track exactly when Chemical Rage's 30-second window ends before committing to a fight;
• prioritize kill participation over solo farm to keep Greevil's Greed stacking;
• melt Aghanim's Scepter onto whichever ally benefits most from an immediate power spike, not just the highest-farmed one;
• buy positioning items early, since Alchemist has none built into his kit.

Insider insight: the decision to melt Aghanim's Scepter for a teammate versus keeping it is really a question of tempo — melting it early can win a fight the team would otherwise lose before Alchemist even scales.

Conclusion

Alchemist rewards a player who thinks about gold as a team resource, not a personal one — Greevil's Greed's melt option is the single biggest lever in the kit, and using it well often matters more than Alchemist's own item timing. He's flexible across five roles, but he's not forgiving of being caught without Chemical Rage active. Pick him when the draft wants a durable, gold-efficient core; skip him against high-mobility drafts that can dodge the stun and punish the lack of an escape.