Mutagenist

Mutagenist
Mutagenists have has researched a serum that they inject to
transform into a monstrous form. They use themselves as the
conduit for this power and hurl themselves towards their enemies
as a hulking abomination. They spend their lives researching and
discovering new ways to improve and modify the serum in hopes of
becoming the perfect form.
Natural Philosophy
1st-level Mutagenist feature
You gain proficiency with alchemist’s supplies and either the
herbalism kit or poisoner’s kit. You also gain proficiency in two
additional languages and the Nature Skill. If you already have this
proficiency, you gain proficiency with another skill of your choice.
Mutagenist Spells
1st-level Mutagenist feature
You always have certain spells prepared after you reach particular
levels in this class, as shown in the Mutagenist Spells table. These
spells count as apothecary spells for you, but they don’t count
against the number of apothecary spells you prepare.
Mutagenist Spells
Apothecary Level Spell
1st jump, toxic shield*
3rd alter self, enhance ability
5th haste, water breathing
7th polymorph, stoneskin
9th reincarnate, septic shock*

Transmogrifying Elixir
3rd-level Mutagenist feature
As a bonus action, you may expend a spell slot to undergo a grotesque
transformation. The transformation ends after one minute,
or if you are reduced to 0 hit points or incapacitated. When you
undergo this transformation you maintain your personality, alignment,
and game statistics. However, several changes occur:
h Your Strength and Intelligence ability scores are swapped.
h Your size becomes Large, your jump distance is doubled, and
you count as one size larger when determining your carrying
capacity and the weight you can push, drag, or lift.
h Each of your hands transform into a big meaty fist, which you
can use to make melee weapon attacks. It counts as a simple
weapon for you. Your big meaty fists deal 1d10 + your Strength
modifier + your Apothecary level bludgeoning damage on a hit.
h You cannot cast or concentrate on spells.
h You have darkvision out to a range of 120 feet.
h You gain temporary hit points equal to five times your
Apothecary level.
You also amplify your abilities based on the potency of your
concoction. This is related to the spell slot you used to undergo
the transformation:
h Your speed increases by 5 feet per level of spell slot used.
h Your AC is 13 + the level of spell slot used.
h At the start of each of your turns and as long as you have at
least 1 hit point remaining, you regain a number of hit points
equal to the level of the spell slot used.
Extra Attack
6th-level Mutagenist feature
Beginning at 6th level, you attack twice, instead of once, whenever
you take the Attack action on your turn.
Potent Biology
6th-level Mutagenist feature
When you are in your transmogrified form, you have more powerful
attacks capable of bypassing your enemy’s greatest defenses.
Your big meaty fist attacks count as magical for overcoming resistance
and immunity to non-magical attacks and damage.
When you hit with an attack using your big meaty fists, you
can expend a spell slot to empower the force of your blow with
unnatural energy. When you expend a spell slot in this way you
deal an additional 1d8 force damage per level of spell slot used.
Adaptive Genetics
10th-level Mutagenist feature
You are able to use your changed biology to protect yourself
from the clutches of death. When you are reduced to 0 hit points
in either your natural, or transmogrified state, your other self is
ready to take over.
h When in your natural form and reduced to 0 hit points you
can immediately transform using your Transmogrifying Elixir
feature expending a spell slot as normal. You regain a number
of hit points equal to your Apothecary level when you do (in addition
to gaining temporary hit points from your transformation).
h When you are reduced to 0 hit points in your transmogrified
form, you revert to your natural form with 1 hit point
remaining. If you do, you can’t assume your transmogrified
form again until you finish a short or long rest.
Unnatural Evolution
14th-level Mutagenist feature
You can use your Greater Formulas feature to transmogrify as
if you had used a spell slot of that level. When you transform
in this way you gain one of the additional genome mutations
listed below.
h Draconic Genome. You grow fleshy wings from your back
and your skin takes on a scaly appearance. You gain a flying
speed equal to your walking speed and as an action can spew
bile in a 30-foot cone. All creatures in the area must succeed
on a Constitution saving throw against your spell save DC or
take 8d6 acid damage, or half as much on a successful save.
Once you use this feature, you can not do so again until you
finish a short or long rest.
h Giant Genome. You become a hulking mass of flesh and
muscle, turning yourself into a living siege weapon. Your size
becomes Huge and all damage dealt to objects and structures is
now doubled. As an action, you can expend a spell slot on your
turn to slam your fists into the ground, sending shockwaves
and rubble crashing around you. All creatures in a 30-foot
radius centered on you must succeed on a Dexterity saving
throw against your spell save DC or they take 8d6 bludgeoning
damage and are knocked prone. If they succeed on the saving
throw, they take half damage and are not knocked prone.
h Cerebellum Genome. You maintain a fraction of your mind
as you transform, allowing remnants of your studies to linger
in your monstrous brain. You now have the ability to maintain
concentration on spells while in your transmogrified form.
While transmogrified, your concentration can’t be broken as a
result of taking damage.
The New Flesh
18th-level Mutagenist feature
You have perfected your Transmogrifying Elixir, breaking
the confines of evolution and pushing your form to what you
deem the apex of evolution. You gain the following benefits
while transmogrified:
h As long as you have one or more hit points remaining, you can
use a bonus action and expend a spell slot to regain hit points
equal to ten times the level of the spell slot used.
h If you fail a saving throw, as a reaction you can expend a spell
slot to succeed instead.
h Your Strength score becomes equal to your Intelligence score
when transmogrified. Additionally, you can cast spells while in
your transmogrified form.