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Incendiary Arcanist (Arcanist/Alchemist)

An incendiary arcanist strives to fuse the consistent techniques of his arcane spellcasting with the volatile science of creating bombs. Unlike the alchemist, the incendiary arcanist uses the arcane energies at his disposable to modify and enhance the effects of these explosive devices and increase the power of their detonation. In addition to his arcane bombs, the incendiary arcanist also employs use of extracts to enhance his arcane capabilities. The incendiary arcanist is essentially a primary spellcaster that can support his allies in combat with ranged incendiaries or with spell effects through extracts, should he exhaust his complement of his spells, or require different tactics to defeat his foe. 

This content was created by the MultiClass Productions fan group.

Primary Class: Arcanist

Secondary Class: Alchemist

Alignment: Any

Hit Dice: d6

Bonus Skills and Ranks: The incendiary arcanist may select three alchemist skills to add to her class skills in addition to the normal arcanist class skills. The incendiary arcanist gains a number of ranks at each level equal to 2 + Int modifier.

Table: Incendiary Arcanist

Level Base Attack Bonus Fort Save Ref Save Will Save Special Spells Per Day
1st 2nd 3rd 4th 5th 6th 7th 8th 9th
1st +0 +0 +2 +2 Alchemical studies, arcane bombs, arcane reservoir, cantrips, consume spells 2
2nd +1 +0 +3 +3 3
3rd +1 +1 +3 +3 Alchemical extracts 4
4th +2 +1 +4 +4 4 2
5th +2 +1 +4 +4 Arcane exploit 4 3
6th +3 +2 +5 +5 4 4 2
7th +3 +2 +5 +5 Metabombs 4 4 3
8th +4 +2 +6 +6 4 4 4 2
9th +4 +3 +6 +6 Arcane exploit 4 4 4 3
10th +5 +3 +7 +7
4 4 4 4 2
11th +5 +3 +7 +7 Arcane exploit, greater exploits 4 4 4 4 3
12th +6/+1 +4 +8 +8
4 4 4 4 4 2
13th +6/+1 +4 +8 +8 Arcane exploit 4 4 4 4 4 3
14th +7/+2 +4 +9 +9
4 4 4 4 4 4 2
15th +7/+2 +5 +9 +9 Arcane exploit 4 4 4 4 4 4 3
16th +8/+3 +5 +10 +10
4 4 4 4 4 4 4 2
17th +8/+3 +5 +10 +10 Arcane exploit 4 4 4 4 4 4 4 3
18th +9/+4 +6 +11 +11
4 4 4 4 4 4 4 4 2
19th +9/+4 +6 +11 +11 Arcane exploit 4 4 4 4 4 4 4 4 3
20th +10/+5 +6 +12 +12 Magical supremacy 4 4 4 4 4 4 4 4 4

Table: Incendiary Arcanist Spells Prepared

Level Spells Prepared
0th 1st 2nd 3rd 4th 5th 6th 7th 8th 9th
1st 4 2
2nd 5 2
3rd 5 3
4th 6 3 2
5th 6 4 3
6th 7 4 4 1
7th 7 5 4 2
8th 8 5 5 2 1
9th 8 5 5 3 2
10th 9 5 5 3 2 1
11th 9 5 5 4 3 2
12th 9 5 5 4 3 2 1
13th 9 5 5 4 4 3 2
14th 9 5 5 4 4 3 2 1
15th 9 5 5 4 4 4 3 2
16th 9 5 5 4 4 4 3 2 1
17th 9 5 5 4 4 4 3 3 2
18th 9 5 5 4 4 4 3 3 2 1
19th 9 5 5 4 4 4 3 3 3 2
20th 9 5 5 4 4 4 3 3 3 3

Weapon and Armor Proficiency

The incendiary arcanist is proficient with all simple weapons, but not with any armor or shields. Armor interferes with an incendiary arcanist’s movements, which can cause his spells with somatic components to fail.


The incendiary arcanist casts arcane spells drawn from the sorcerer/wizard spell list. An incendiary arcanist must prepare her spells ahead of time, but unlike a wizard, her spells are not expended when they’re cast. Instead, she can cast any spell that she has prepared consuming a spell slot of the appropriate level, assuming she hasn’t yet used up her spell slots per day for that level. She also receives bonus spells per day if he has a high Intelligence score. An incendiary arcanist otherwise learns, prepares, and casts spells as an arcanist of equal level.

Alchemical Studies (Su)

At 1st level, an incendiary arcanist gains the alchemist’s alchemy ability, granting her the ability to create mundane alchemical substances such as alchemist’s fire and smokesticks. When using Craft (alchemy) to create an alchemical item, the incendiary arcanist gains a competence bonus equal to her class level on the Craft (alchemy) check. In addition, the incendiary arcanist can use Craft (alchemy) to identify potions as if using detect magic. She must hold the potion for 1 round to make such a check.

Arcane Bombs

At 1st level, as a standard action, an incendiary arcanist can create a bomb similar to an alchemist’s bomb by expending 1 point from her arcane reservoir. However, when the bomb is created, the incendiary arcanist must choose one type of energy from the following list: acid, cold, fire, and electricity. The arcane bomb deals 1d6 points of damage of the chosen energy type + additional damage equal to her Charisma modifier. For every 2 levels beyond 1st, the incendiary arcanist deals an additional 1d6 points of energy damage (to a maximum of 10d6 at 19th level). Splash damage from an arcane bomb is equal to the bomb’s minimum damage. Creatures caught in the splash damage may attempt a Reflex saving throw to halve the damage. The DC of this save is equal to 10 + 1/2 the incendiary arcanist’s level + the incendiary arcanist’s Charisma modifier. This ability replaces the arcanist exploit gained at 1st level.

Arcanist Eploits

This is exactly like the arcanist ability of the same name, except that the incendiary arcanist may select one of the following alchemist discoveries in place of an exploit: combine extracts, confusion bomb, delayed bomb, dilution, dispelling bomb, elixir of life, enhance potion, eternal potion, explosive bomb, explosive missile, extend potion, fast bombs, inferno bomb, infusion, poison bomb, precise bomb, sandstone solution, smoke bomb, stink bomb. The incendiary arcanist must meet the prerequisites of any discovery she chooses. The incendiary arcanist has an alchemist level equal to her incendiary arcanist level for the purpose of qualifying for discoveries. The incendiary arcanist must have the related spell written in her spellbook for the purpose of any bomb discovery that creates a spell effect.

In addition, an incendiary arcanist may choose one of the following grand discoveries as her 19th level arcanist exploit: awaken intellect, eternal youth, fast healing, philosopher’s stone. If the arcanist chooses a grand discovery, she permanently reduces her arcane reservoir by 4 points.

Alchemical Extracts (Su)

At 3rd level, an incendiary arcanist learns to create extracts drawn from the wizard spell list. While studying her spellbook, she prepares her spells as normal. She can create any extract of a prepared spell, but the spell must appear on both the wizard spell list and the alchemist formulae list. Only wizard spells found on the alchemist formulae list of 6th level and lower can be made into extracts, and uses a spell slot equal to the alchemist’s formula level. For example, if a 1st–level wizard spell is also a 2nd–level alchemist extract, then the incendiary arcanist must use a 2nd–level spell slot to create an extract of that spell. The incendiary arcanist can choose to create her extracts at the start of the day, or create them in the field as needed by using an open spell slot of the appropriate formula’s level. In either case, mixing an extract takes 1 minute of work.

Like an alchemist, when an incendiary arcanist creates an extract, she infuses the concoction with a tiny fraction of her own magical power (from her arcane reservoir), binding the effects to herself (the creator). At 3rd level, the incendiary arcanist can create 1st–level extracts from her spells. Every three levels thereafter, the incendiary arcanist can create each subsequent level of extracts from her spells, up to a maximum of 6th–level extracts at 18th level.

Unlike wizards, an incendiary arcanist can learn spells from an alchemist’s formula book that are on the wizard spell list and copy them into her spellbook as spells, but only if they are on both the wizard spell list and the alchemist formulae list. If an extract is found only on the alchemist formulae list and not on the wizard spell list, it can only be prepare as an extract. If a spell is found only on the wizard spell list and not on the alchemist formulae list, it can only be prepare as a spell. An incendiary arcanist does not need to decipher arcane writings before copying them. This ability replaces the arcanist exploit gained at 3rd level.

Metabombs (Sp)

At 7th level, an incendiary arcanist can use metamagic feats to enhance her arcane bombs. The incendiary arcanist can apply any of the following metamagic feats to her arcane bombs: Burning Spell, Concussive Spell, Dazing Spell, Disruptive Spell, Enlarge Spell, Flaring Spell, Rime Spell, Sickening Spell, Thundering Spell. Adding a metamagic feat to an arcane bomb reduces its damage by 1d6 for each level increase of the metamagic feat. The incendiary arcanist may only apply a metamagic feat with an effect similar to the bomb. For example, a 12th level incendiary arcanist wants to use the Flaring Spell metamagic feat on her arcane bomb, which only affects spells with the electricity, fire, or light descriptor. Flaring Spell has a +1 level increase. She must create either an electricity bomb of fire bomb to be able to apply the Flaring Spell metamagic feat to the bomb, and must reduce her bomb damage by 1d6. Applying a metamagic feat to an arcane bomb is a free action. This ability replaces the arcanist exploit gained at 7th level.