Alchemist/Counters

Bad against...

 * cancels out 's rapid health regeneration.


 * greatly reduces 's attack speed advantage.


 * can kill Alchemist before has the time to heal him.


 * , followed by take advantage of Alchemist's low base armor, making it easy to quickly kill him with physical damage.


 * - Invokers can win the mid lane easily against Alchemist because regen will nullify 's damage over time and  damage bonus will allow Invokers to out last hit Alchemist.

Others

 * Viper
 * Clinkz
 * Io

Items

 * reduces 20px's already low base armor even further, and protects against his rapid physical attacks.
 * reduces 20px's attack speed and gives a fair amount of armor.
 * Entry

Good against...

 * 's abilities rarely do enough damage to seriously harm Alchemist.


 * kills Phoenix very quickly in.


 * will take down in no time.
 * Alchemist can also farm the zombies for easy gold.


 * 's health regeneration and attack speed bonus will make fail.


 * will decrease Meepo armor, good combo with.
 * is good to stop Meepo because his lack of spell immune.
 * Don't forget your ultimate, to kill him fastly before he  away.
 * Some Alchemist build so he can weak all Meepoes in one hit.


 * His low HP makes Alchemist can take out him fast.
 * and is best effect with treant so he can rich faster.
 * More benefit of, if he try to himself for  with low health, he can die before  done. It's more effective with  aura and  if Alchemist can see him.

Others

 * Any farmer heroes because they disadvantage to get money and in fight.
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Works well with...

 * combined with makes Alchemist attack at insane speeds.


 * and will purge nasty stuff away.
 * combined with may give you some serious sustainability.
 * is an aoe purge, which will remove from enemies buffs like and, and also root them.


 * Stonegazing makes Alchemist can kill their enemies with Acid Spray and Chemical Rage.


 * Reason


 * Reason


 * Both are tanker,so they can initiate both by Unstable Concoction and Ravage which cause double stun (or triple if Tidehunter has Refresher Orb). More reason is Alchemist can gives Tidehunter Scepter and Moon Shard which make him stronger and more powerful Gush and Ravage.

Others

 * Alchemist works well with any hero that has an upgrade, as he can farm it for them (most likely far more quickly) and also free up an inventory slot.
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List of heroes that counter Alchemist, and list of heroes that work well with Alchemist.