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At 2nd level, and then again every 2 levels thereafter (up to 18th level), an alchemist makes an incredible alchemical discovery. Unless otherwise noted, an alchemist cannot select an individual discovery more than once. Some discoveries can only be made if the alchemist has met certain prerequisites first, such as uncovering other discoveries. Discoveries that modify bombs that are marked with an asterisk (*) do not stack. Only one such discovery can be applied to an individual bomb. The DC of any saving throw called for by a discovery is equal to 10 + 1/2 the alchemist’s level + the alchemist’s Intelligence modifier.
At 20th level, the alchemist makes a grand discovery. He immediately learns two normal discoveries, but also learns a third grand discovery chosen from the list below, representing a truly astounding alchemical breakthrough of significant import. For many alchemists, the promise of one of these grand discoveries is the primary goal of their experiments and hard work.
Note Discoveries marked with an asterisk (*) do not stack—only one such discovery may be applied to a single bomb.
| Paizo | |||
|---|---|---|---|
| Discovery | Prerequisites | Benefits | Source |
| Acid Bomb* | - | Deal acid damage with your bombs | APG |
| Alchemical Simulacrum (Su) | Alchemist 8 | Create a lesser simulacrum | UM |
| Alchemical Zombie (Su) | Alchemist 8 | Create zombie as if created by animate dead | UM |
| Blinding Bomb* | Alchemist 8 | Blind enemies with your bombs | UM |
| Bottled Ooze (Su) | Alchemist 6 | Preserve an ooze so it can be summoned later | UM |
| Breath Weapon Bomb* | Alchemist 6 | You can use a bomb as a breath weapon | UC |
| Celestial Poisons (Su) | Alchemist 8 | You can make poisons which affect undead and evil outsiders (which are normally immune to poisons.) | CoP |
| Chameleon (Su) | - | Your skin changes colors, granting you a bonus on Stealth checks | ARG |
| Change Alignment (Su) | Alchemist 12, infusion discovery | Once/day brew an infusion which changes drinkers alignment to good for 10 min./alchemist level (unwilling drinkers gain save to resist.) | CoP |
| Cognatogen (Su) | - | Increase a mental score and decrease a physical score | UM |
| Combine Extracts | Alchemist 8 | Use two formulae at once | APG |
| Concentrate Poison | - | Combine two poisons for increased effect | APG |
| Concussive Bomb* | Alchemist 6 | Deal sonic damage with your bombs | APG |
| Confusion Bomb* | Alchemist 8 | Cause confusion with your bombs | UM |
| Deadly Excretions (Ex) | Alchemist 8 | Your toxic skin poison deals Constitution damage | ARG |
| Defoliant Bomb | - | You can create a bomb that deals extra damage to plant creatures | ARG |
| Delayed Bomb | Alchemist 8 | You can choose to delay the explosion of your bombs | APG |
| Demolition Charge* | Alchemist 8 | When you create a bomb, you can choose to have it deal damage to an object as if by a sunder combat maneuver. | DHB |
| Dilution | Alchemist 12 | Create two doses of a potion or elixir from one set of ingredients | APG |
| Dispelling Bomb | Alchemist 6 | Dispel magic with your bombs | APG |
| Doppelganger Simulacrum (Su) | Alchemist 10, alchemical simulacrum | Create a temporary body | UM |
| Elixir of Life | Alchemist 16 | Create an elixir that can cast true resurrection | APG |
| Enhance Potion | - | Cause potions to be more powerful | APG |
| Eternal Potion | Alchemist 16, extend potion | Cause a potion to become permanent | APG |
| Explosive Bomb* | - | Your bombs gain an increased area of effect | APG |
| Explosive Missile | Alchemist 4 | Infuse a piece of ammunition with a bomb | UC |
| Extend Potion | - | Potions you drink last longer | APG |
| Fast Bombs | Alchemist 8 | You can throw multiple bombs in a round | APG |
| Feral Mutagen | - | Gain two claw attacks and a bite attack | APG |
| Fire Brand (Su) | Goblin | Use a bomb to set your weapon on fire | ARG |
| Force Bomb* | Alchemist 8 | Deal force damage with your bombs | APG |
| Frost Bomb* | - | Deal cold damage with your bombs | APG |
| Grand Cognatogen (Su) | Alchemist 16, greater cognatogen | Increase mental scores and decrease physical scores | UM |
| Grand Mutagen | Alchemist 16, greater mutagen | Increase physical scores and decrease mental scores | APG |
| Grease Bomb* | Alchemist 6 | When you create a bomb, you can choose to have it create a grease slick upon detonation. | DHB |
| Greater Plague Bomb | Alchemist 16, plague Bomb, smoke Bomb | Your smoke bombs spread a deadly disease | ARG |
| Greater Alchemical Simulacrum (Su) | Alchemist 14, alchemical simulacrum | Create a simulacrum | UM |
| Greater Cognatogen (Su) | Alchemist 12, cognatogen | Increase mental scores and decrease physical scores | UM |
| Greater Mutagen | Alchemist 12 | Increase physical scores and decrease mental scores | APG |
| Healing Touch (Ex) | Alchemist 6, spontaneous healing | Heal other creatures with a touch | UM |
| Holy Bombs* | Alchemist 8 | Bombs you create can deal good divine damage. |
CoP |
| Immolation Bomb* | Alchemist 3 | Deal damage over time with your bombs | UC |
| Inferno Bomb* | Alchemist 16, smoke bomb | Create an incendiary cloud effect with your bombs | APG |
| Infuse Mutagen | - | You can have multiple mutagens prepared | APG |
| Infusion | - | Your infusions can be used by others | APG |
| Lingering Plague | Alchemist 8 | Creatures have to save more often against your disease-causing bombs | ARG |
| Lingering Spirit (Ex) | Alchemist 4 | You can take more damage before being killed | UM |
| Madness Bomb | Alchemist 12 | Deal Wisdom damage with your bombs | APG |
| Malignant Poison | Alchemist 10 | As a full-round action, you can increase the save DC of any poison and increase its duration | DHB |
| Mummification (Ex) | Alchemist 10, preserve organs | Gain mummy-like immunities | UM |
| Mutagen (Su) | - | Increase physical scores and decrease mental scores | UM |
| Nauseating Flesh | Alchemist 12 | Anything that bites the alchemist is nauseated | UC |
| Parasitic Twin (Ex) | Vestigial Arm (2) | You can reroll your saves against certain mental effects | UM |
| Plague Bomb* | Alchemist 8, smoke bomb | Duplicate the effects of contagion with your bombs | UM |
| Poison Bomb* | Alchemist 12, smoke bomb | Duplicate the effects of cloudkill with your bombs | APG |
| Poison Conversion | Alchemist 6 | You can convert one form of poison to another form | UC |
| Precise Bombs | - | Choose which squares are missed by your bomb's splash damage | APG |
| Preserve Organs (Ex) | - | Sneak attacks and critical hits are less likely to do damage | UM |
| Rag Doll Mutagen (Su) | Goblin | Your body becomes rubbery and easy to contort | ARG |
| Ranged Baptism | Alchemist 4 | You can use holy water as a splash weapon and any squares subject to its effects (including creatures affected by splash damage) or that contain creatures subject to its effects are also affected as if by the consecrate spell. | CoP |
| Rocket Bomb (Su) | Goblin, Alchemist 6th | Create bombs with less accuracy but more ka-boom! | ARG |
| Scrap Bomb (Su) | Goblin | Your bombs create shrapnel and cause bleed damage | ARG |
| Shock Bomb* | - | Deal electricity damage with your bombs | APG |
| Siege Bomb* | Alchemist 12, explosive bomb | Deal bomb damage with siege weapons | UC |
| Smoke Bomb* | - | Create a fog cloud effect with your bombs | APG |
| Spontaneous Healing (Ex) | - | You can heal more rapidly | UM |
| Sticky Bomb | Alchemist 10 | Deal splash damage one extra round | APG |
| Sticky Poison | Alchemist 6 | Poison applied to a weapon lasts longer | APG |
| Stink Bomb* | Smoke bomb | Create a stinking cloud effect with your bombs | APG |
| Strafe Bomb (Su) | - | Your bomb splash damage affects a line | UM |
| Sunlight Bomb* | Alchemist 10, blinding bomb | Create a bright sunlight effect with your bombs | UM |
| Tanglefoot Bomb* | - | Entangle foes with your bombs | UM |
| Tentacle (Ex) | - | Gain an extra limb | UM |
| Tumor Familiar (Ex) | - | Gain a familiar that is part of the alchemist's body | UM |
| Underwater Demolition (Ex) | - | You can create and throw bombs underwater | ARG |
| Vestigial Arm (Ex) | - | Gain an extra arm | UM |
| Wings (Ex) | Alchemist 6 | Gain wings that let you fly | UM |
| Grand Discoveries | Prerequisites | Benefits | Source |
| Awakened Intellect | Grand discovery | Gain 2 points of Intelligence | APG |
| Change Alignment, Greater | Grand discovery, Alchemist 20, change alignment discovery, infusion discovery | Change alignment infusion effects are permanent (but can be removed by wish or miracle.) | CoP |
| Eternal Youth | Grand discovery | Stop aging | APG |
| Fast Healing | Grand discovery | Gain fast healing 5 | APG |
| Philosopher's Stone | Grand discovery | Learn how to make a philosopher's stone | APG |
| Poison Touch | Grand discovery | Gain a poison touch attack | APG |
| True Mutagen | Grand discovery, grand mutagen | Gain a more powerful mutagen | APG |
| 3rd Party Publishers | |||
| Publisher | |||
| Discoveries | Prerequisites | Benefits | Source |
| Compounding Formulary | Alchemist 4 | The alchemist can create alchemical items in powdered rather than liquid form and can infuse powders and liquids together into a variety of stable magical compounds. | Inverse |
| Effectual Invisibility | Alchemist 4 | Whenever using an extract, potion, spell-completion, or spell-trigger item to create an invisibility effect, use alchemist level as caster level rather than the caster level of the item. | Inverse |
| Invisible Bomb | Alchemist 8 | When creating a bomb, can choose to render the bomb and its explosion invisible until thrown denying opponent its Dexterity bonus to AC against the attack and creatures struck or within the blast radius suffer a -2 to Reflex saves against the bomb. | Inverse |
| Tenacious Invisibility | Alchemist 6 | When creating an extract or mutagen that provides invisibility, whenever the invisibility effect would be ended prior to the end of its duration, including being dispelled or being broken by making an attack, the invisibility effect lingers for a number of additional rounds and the DC to dispel an extract that provides invisibility is increased. | Inverse |
| Transparency Mutagen | Alchemist 10 | Become invisible when imbibing a mutagen and invisibility lasts for the duration of the mutagen. | Inverse |
| True Invisibility | Alchemist 14 | When creating an extract or mutagen that provides invisibility, the target of that extract or mutagen is also protected against all devices and spells that gather information about the target through divination magic for as long as the invisibility effect lasts. | Inverse |
| Grand Discoveries | Prerequisites | Benefits | Source |
