Uncontrolled Power

As an abomination, you are a creature apart from society. In the course of your ordinary day, you are unimposing, even gentle, offering a helpful word or a skillful eye but rarely inspiring fear. But when your sealed power breaks free, you transform into a raging monster, able to decimate the ranks of your foes. You may choose to constrain your inner beast, drawing on its power sparingly, or instead give yourself over to it fully in a terrifying frenzy.

Abominations rarely have any sort of negotiation with their inner power; it is a part of themselves, albeit a fearsome and terrifying one. An abomination's strength depends on their ability to maintain a delicate balance, drawing on their inner power without losing control entirely. Channeling too much power will awaken the beast and trap you in its form until you can recover. Holding too much in reserve, though, may mean the beast's power is unavailable when you truly need it.

Hit Points

• Hit Dice: 1d10 per abomination level
• Hit Points at 1st Level: 10 + your Constitution modifier
• Hit Points at Higher Levels: 1d10 (or 6) + your Constitution modifier per abomination level after 1st

Proficiencies

• Armor: Light armor, medium armor, shields
• Weapons: Simple weapons
• Tools: None
• Saving Throws: Constitution, Charisma
• Skills: Choose three from Acrobatics, Arcana, Athletics, Deception, Intimidation, Medicine, Nature, and Religion.

Equipment

You start with the following equipment, in addition to the equipment granted by your background:

• (a) a dagger, (b) a sling, or (b) a simple weapon
• (a) leather armor or (b) hide armor
• (a) an explorer’s pack or (b) a dungeoneer’s pack
• a personal memento

Alternatively, you may start with 5d4 × 10 gp to buy your own equipment.

Bag of Frenzy Rats

Anytime this document refers to a "hostile creature", it means a creature of CR 1/4 or higher that intends to do you or your companions harm. A creature isn't hostile if it doesn't mean you ill or if it isn't a significant threat. If it's hard to tell if a creature is hostile by this definition, then it probably isn't.

Gaining Frenzy

While you are transformed, you can gain frenzy points in a variety of ways:

• You gain 1 frenzy point when a hostile creature hits you with an attack.
• You gain 1 frenzy point when you hit a hostile creature with a melee attack.
• You gain 1 frenzy point when you reduce a hostile creature to 0 hit points.

Draining Frenzy

Sacrificial Frenzy allows you to sustain your transformation at the cost of hit points, if you aren't generating enough frenzy to sustain it otherwise. It can even allow you to transform outside of combat. But fueling your monstrus urges this way will cost you.

2nd-Level Mutations

4th-Level Mutations

Thickened Hide

Your skin grows unnaturally tough, becoming resistant to your enemies' attacks.

At All Times. Your hit point maximum increases by your abomination level, and it increases by 1 every time you gain a level in this class.

When Transformed. When you activate your Fearsome Transformation, you gain resistance to nonmagical bludgeoning, piercing, and slashing damage until the start of your next turn.

Unexplained Senses

You develop new senses that you've never displayed before.

At All Times. You gain darkvision out to 60 feet. If you already have darkvision, its range is increased by 30 feet.

When Transformed. You gain blindsight out to 15 feet.

9th-Level Mutations

13th-Level Mutations

17th-Level Mutations

Leaping Sinews

Your legs become powerfully muscled, with explosive energy for pouncing attacks.

At All Times. Your jumping distance is tripled.

When Transformed. When you move at least half your speed before making a melee attack, you make the attack with advantage, and your attack deals 1 additional die of damage if it hits.

Power of the Moon

You gain a mystical connection to the moon and are empowered by its light.

At All Times. When you can see the moon or the night sky, you can add your Wisdom modifier to the result of any healing you receive.

When Transformed. When you you can see the moon or the night sky, your Fearsome Transformation takes effect as if you had spent 1 additional frenzy.

Hunter's Venom

You develop a terrible venom which you can deliver with your natural weapons.

At All Times. When you hit a creature with a melee attack, you can spend 1 frenzy point to force it to make a Constitution saving throw. On a failure, it is poisoned until the end of your next turn.

When Transformed. The first time you hit with an attack on your turn, it deals 1d6 bonus poison damage.

Surging Hunt

You develop a relentless hunting instinct, leading you inexorably to your prey.

At All Times. When a hostile creature within 120 feet is below half its maximum hit points, you can ignore nonmagical difficult terrain.

When Transformed. Your speed is increased by 10 feet, and you have advantage on saving throws and ability checks to end the grappled or restrained conditions.

Magic of the Wild

You gain a limited facility with spells drawing on your beastly heritage. You learn spells when you reach certain levels in this class, as shown in the table below. You can cast each spell once with Wisdom as your casting ability, regaining the ability to do so after finishing a long rest.

When you cast one of these spells, you gain 1 frenzy point.

Nature of the Flame

Sometimes an abomination's curse comes from a hidden fire, a raging flame trapped within the recesses of their soul. When it emerges, it does so in an explosion of heat and fury, searing any who dare challenge its bearer.

Flame abominations are most often found on the front lines, searing enemies with their heat and controlling the battlefield by presence alone. The burning rage that fuels them demands nothing less.

Burning Gaze

You can emit a ray of fire with a simple look. This is a ranged spell attack with a 60-foot range, which uses your Wisdom to attack and deals fire damage equal to 1d6 plus your Wisdom modifier on a hit.

At All Times. You can replace one attack with your Burning Gaze when you take the Attack action.

When Transformed. Your Burning Gaze's damage increases by 1d6. If you target a flammable object, it ignites.

Fiery Lash

You can conjure a brutal whip of flame, reaching out to scorch your foes. This is a one-handed simple melee weapon with the finesse and reach properties, which deals 1d6 fire damage on a hit.

At All Times. You can conjure a fire whip at will (no action required).

When Transformed. Once per turn when you hit an enemy with your whip, you can force it to make a Strength saving throw. On a failure, it is pulled up to 10 feet towards you and knocked prone.

Jet of Flame

You can propel yourself around the battlefield by summoning blasts of flame.

At All Times. Your jumping distance is doubled. When you jump unusually far, visible flames emerge from your feet.

When Transformed. You gain a 30-foot flying speed, but you cannot stay in the air after the end of your turn.

Searing Fire

Your fire burns with an unnatural intensity.

At All Times. Your attacks and spells ignore resistance to fire damage.

When Transformed. Your Unleashed Flame's damage die increases by one size, to a maximum of 1d12.

Enkindled Magic

You gain a limited facility with spells drawing on your hidden nature. You learn spells when you reach certain levels in this class, as shown in the table below. You can cast each spell once with Wisdom as your casting ability, regaining the ability to do so after finishing a long rest.

When you cast one of these spells, you gain 1 frenzy point.

You might consider cone of flame^SDS and fiery blade^SDS as improved replacements for burning hands and flame blade.

Nature of the Slayer

The most fearsome and ostracized of abominations are subject to a fiendish curse, tainted with a demon's mad bloodthirst. Their spirits contain the essence of the lower planes, an innate corruption of body and soul. Sometimes this curse is inborn or results from dark magic; other times, it is an aftereffect of possession or even an expression of a sealed fiend's presence.

Slayer abominations live to kill, charging foes in a terrifying whirl of claws and spikes. When their inner demon is awakened, even friends and allies tremble at the sight.

Bathed in Blood

Your demonic form rejoices in bloodshed.

At All Times. Wisdom (Medicine) checks made to stabilize you when you are dying are made with advantage.

When Transformed. When you use your Sacrificial Frenzy, you make your next attack with advantage.

Chaotic Defenses

You gain a demon's resistance to damage, though in an unpredictable fashion.

At All Times. When you finish a long rest, roll 1d4 on the table below. You gain the corresponding damage resistance until the end of your next long rest. If you already have resistance to the resulting damage type, roll again until you get a resistance you don't already have.

When Transformed. When you transform, immediately roll on the damage resistances table again and gain that resistance for the duration of your transformation. If you already have resistance to the resulting damage type, you instead gain immunity.

Demonic Bile

You can retch an awful abyssal fluid, afflicting your foes.

At All Times. You have advantage on saving throws against ingested poisons and spoiled food and drink.

When Transformed. When you take the Attack action, you can retch on an adjacent creature in place of one attack. The target must make a Constitution saving throw against your frenzy save DC. On a failure, it takes 1d6 poison damage for each point of frenzy you hold and is poisoned until the end of its next turn. On a success, it takes half as much damage and is not poisoned.

Whirling Claws

Prerequisite: 4th level

Your demonic form grows extra pair of limbs, tipped with brutal claws.

At All Times. When you make a Charisma (Intimidation) check, you can choose to give yourself advantage. You can do so once, regaining the ability after finishing a short or long rest.

When Transformed. You have two additional limbs, which end in wicked blades that slice in tandem with your claws. As a bonus action when you hit a creature with a mele attack, you can deal an additional 2d4 piercing damage.

Demonic Magic

You gain a limited facility with spells drawing on your hidden nature. You learn spells when you reach certain levels in this class, as shown in the table below. You can cast each spell once with Wisdom as your casting ability, regaining the ability to do so after finishing a long rest.

When you cast one of these spells, you gain 1 frenzy point.

Nature of Krampus

Every Yuletide, doorsteps are darkened by the most fearsome of all abominations. The creature's origin is uncertain, as well as its strange seasonality. But all villagers know to cower in their houses when a fearsome monster, armed with horn, tongue, and hoof, stalks by in the midwinter chill.

Krampus Mutations

The following mutations available to characters with the Nature of Krampus.

One With the Trees

When you discover this nature at 2nd level, you find a deep connection within your soul to the deep forests. You gain proficiency with Nature or another abomination skill if you are already proficient. You can add half your abomination level to the result of any Intelligence (Nature) check you make related to trees, plants, or forest ecology.

Ironbark Avatar

Also at 2nd level, your fearsome transformation allows you to become a mighty treant. While in your transformation, you gain the following benefits:

• You can choose to become Large when you transform.
• Your limbs stretch into 10-foot branches. You can interact with objects up to 10 feet away and all your melee attacks gain the reach property.
• Your type is Plant.
• At the start of each of your turns, you can choose to root yourself, reducing your speed by half until the start of your next turn. While rooted, you gain resistance to nonmagical bludgeoning and piercing damage.
• When you hit a creature with a melee attack, you can spend 1 frenzy to summon a clutch of roots to entangle it. The target must succeed on a Dexterity saving throw or become restrained by the roots until the start of your next turn. The creature can be freed by destroying the roots, which have an AC equal to your AC and hit points equal to your Wisdom modifier plus the amount of frenzy you spent on your transformation.

Speak for the Trees

At 6th level, you learn speak with nature^SDS. You can cast it once as a 2nd-level spell without expending a spell slot, and then you can't cast it again until you finish a short or long rest.

In addition, you have advantage on any Dexterity (Stealth) checks when hiding motionlessly. If you are hiding in a forest or other wooded area, you can roll the d20 an additional time and use the highest result of the three.

Regrowth

At 10th level, your presence causes the world around you to bloom with growth. When you gain temporary hit points through one of your class features, the amount is increased by your Wisdom modifier, and you can grant the same amount of temporary hit points to one other creature within your reach.

Crushing Arbor

At 15th level, your roots and branches choke the life out of your enemies. At the start of each of your turns, every hostile creature within your reach takes 2d6 bludgeoning damage.

Rage of the Wilds

At 20th level, your tree form fully embodies the forest's wrath. All temporary hit points you receive are doubled, your reach increases to 15 feet, and you gain 1 frenzy at the start of your turn for every hostile creature within your reach.

Living Roots

You gain a more powerful connection to the plants around you.

At All Times. You have advantage on Wisdom (Perception) checks and initiative rolls in forests, jungles, and other wooded areas.

When Transformed. When a creature starts its turn bound by roots you summoned or grappled by you, it takes 1d8 bludgeoning damage.

Verdant Slam

You can use your rampant growth to harden your bark, increasing the power of your blows.

At All Times. When you are at your maximum hit points, you have advantage on your attack rolls, and your Channeled Curse grants advantage to its target's next attack.

When Transformed. When you hit with a melee attack while you have temporary hit points, you can subtract a number of temporary hit points up to your abomination level. If you do so, add the same amount of bonus damage to the attack.

Sanguine Senses

When you discover this nature at 2nd level, a terrible thirst for blood awakens within you. You gain proficiency in Survival, Medicine, or an abomination skill of your choice if you're already proficient in both.

In addition, you gain the Ripping Teeth mutation, which doesn't count against your mutation total.

Channeled Drain

Also at 2nd level, when you enhance an ally's attack with your Channeled Curse, the targeted ally gains temporary hit points equal to the bonus damage dealt.

Vampiric Frenzy

Also at 2nd level, your fearsome transformation takes the form of a ravenous bat-creature. While in your transformation, you gain the following benefits:

• When you hit a hostile creature with a melee attack, you gain temporary hit points equal to the amount of frenzy spent on your transformation.
• As a reaction when a hostile creature falls to 0 hit points within 20 feet of you, you can move up to 10 feet and make one melee attack.
• When you fall below half your maximum hit points, you gain frenzy points equal to your proficiency bonus.
• Vestigial wings grow along your arms, doubling your jumping distance.
• Anytime you are below half your maximum hit points and would gain temporary hit points, you are instead healed for the same amount.

Swarm of Bats

At 6th level, you can briefly transform yourself into a swarm of bats. You learn the spell misty step, which you can cast one time without expending a spell slot, with Wisdom as your spellcasting ability. When you cast it in this way, you can choose to inflict 2d4 necrotic damage on any creature you move through. Once you cast it this way, you can't do so again until you finish a short or long rest.

Bloodsoaked Shield

At 10th level, you can extend your blood-fueled might to your allies. Once per turn when you gain temporary hit points through your Vampiric Frenzy, you can grant the same amount of temporary hit points to one willing creature within 15 feet.

Monstrous Charge

At 15th level, you can bowl over your enemies with a ferocious charge. In place of one attack when you take the Attack action, you can move up to 30 feet without provoking opportunity attacks. You can move through other creatures, though you can't end your movement in another creature's space. Each creature you move through must make a Strength saving throw against your frenzy save DC. On a failure, it takes 4d6 bludgeoning damage and is knocked prone if it is Large or smaller. On a success, it takes half as much damage and does not fall prone. You gain 1 frenzy for each creature that fails its saving throw.

You can charge in this way once, regaining the ability after finishing a short or long rest.

Slake Thirst

At 20th level, you become a blood-soaked engine of destruction. Anytime you would gain temporary hit points, you can instead choose to deal the same amount of necrotic damage to every creature within 10 feet of you.

Blood Drinker

You fuel yourself with the blood of others.

At All Times. If you consume a pint of blood in place of a meal, you can go for a week without experiencing the effects of hunger or starvation.

When Transformed. When you take the Attack action, you can replace 1 attack with a special bite attack using your Ripping Teeth against a creature you are grappling. If you do so, you gain temporary hit points equal to the damage dealt. If you are below half health, you instead regain hit points for the same amount.

Chiropteran Form

You gain the ability to alter your shape, taking on attributes of a vampire's closest animal allies.

At All Times. You can shapeshift into a giant bat, using the rules for the druid's Wildshape feature. You can do so once, regaining the ability after finishing a long rest.

When Transformed. You gain blindsight out to 30 feet.

Gripping Claws

Your clawed limbs are especially good at trapping enemies.

At All Times. You gain a climbing speed equal to your walking speed.

When Transformed. When you hit a creature with an attack, you can attempt to grapple it as a bonus action.

v0.8

• Added the Nature of Blood!
• Nerfed Sacrificial Frenzy
  • Increased cost and limited to 1 frenzy per round
• Renamed Unlearned Skill and clarified
• Nature of Flame
  • Replaced Overwhelming Blaze with Spreading Blaze
  • Buffed Unbounded Ignition
• Nature of the Slayer
  • The general idea here is a) to rein it in, it was too strong, and b) to open up more space for the Nature of Blood. So most of Slayer's temporary hit point generation is gone, and instead of being tanky while it kills things, it's more of a glass cannon that burns through its own hit points to deal damage.
  • Nerfed Whirling Claws
  • Replaced Demonic Frenzy with Demonic Consumption
  • Reworked Bloodthirsty Frenzy to accomodate above
  • Reworked Bathed in Blood similarly
  • Added Chatoic Defenses

v0.7

• Added the Nature of the Forest!
• Added scaling at level 17: 7 frenzy and 5 mutations
  • This is mostly so I can justify the continuing existence of level-17-locked mutations
• Added Canny Defenses
• Corrected starting hp error
• Channeled Curse
  • Buffed with damage
  • No longer costs a reaction
• Sacrificial Frenzy
  • Reduced maximum by 1 at most levels
  • Increased self-damage to 1d6
• Abominable Power: clarified timing trigger
• Eerie Resilience: buffed from Str/Dex prof to adding Wisdom mod
• Fearsome Transformation: added a 1-minute cooldown
• Abominable Mutations
  • Added Fearsome Might
  • Added Unstoppable Charge
  • Added Wretched Shield
  • Reworked (mostly nerfed) Thickened Hide
• Nature of the Beast
  • Buffed Power of the Moon
  • Buffed Hunter's Venom

v0.6

• Added the Nature of the Slayer!
• Abominable Mutations
  • Added Spined Carapace
  • Added Abominating Influence

v0.5

• Added an additional ASI at level 14
• Changed hit die to a d10
• Reworked Sinister Influence: now generates frenzy instead of spending it
• Monstrous Transformation now costs frenzy to maintain
  • You can generate this frenzy with Sacrificial Frenzy, if needed
• Added Channeled Curse
  • This is an untransformed support action that buffs an ally's attack, and can spend frenzy to apply control effects
• Moved Abominable Power from 11th to 5th
  • Added a second rung of scaling
• Moved Eerie Resilience from 7th to 11th
• Converted Unnatural Recovery from a frenzy cost to 1/rest
• Invincible Awakening bypasses transformation's new frenzy maintenance
• Mutations
  • Added Unlearned Skill
  • Added Destructive Curse
• Beast
  • Dreadful Pounce: Channeled Curse grants bonus movement.
  • Hunter's Venom: Damage reduced from 1d4/hit to 1d6/turn.
  • Added attack no longer costs frenzy; hitting with multiple attacks generates it
• Flame
  • Flaming Frenzy: gain 1 frenzy when you deal fire damage
  • Cauterizing Heat: transformed effect changed
• Krampus: gain 1 frenzy if you start next to a controlled enemy

v0.4

• Added the Nature of Flame!
• Added (for now) the Nature of Krampus!
• Added Eerie Resilience
• Mutations
  • Added Controllled Transformation (9th)
• Fearsome Transformation
  • Reverting now costs an action (instead of a bonus action)
• Abominable Mutations
  • Removed swapping and replaced with a note block
• Unleashed Strike
  • Removed bonus action cost. This is experimental and will quite possibly be reverted if it opens up too many overpowered builds.
• Natue of the Beast
  • added attack no longer conditioned on BA & hitting two attacks; now it's action-free and costs 1 frenzy

v0.3

• Frenzy
  • Added frenzy on initiative
  • Split frenzy generation clauses to be different for transformed vs. untransformed
• Fearsome Transformation
  • Fearsome Transformation now ends after 1 minute without earning or spending frenzy
  • Fearsome Transformation allows either Wis or Dex for the AC calculation
  • Yo dawg, you can no longer transform while transformed
• Buffed Monstrous Deflection
• Removed action cost from Sacrificial Frenzy
• Added Unsettling Aspect
• Added Invincible Awakening at 18th
• Abominable Mutations
  • Buffed damage on Brutal Horns
  • Moved Thickened Hide to 5th level
  • Added Gliding Wings, Powerful Tail, Soaring Wings, Enormous
• Nature of the Beast
  • Buffed/reworked Pack Leader
  • Added frenzy generation to Magic of the Wild
  • Adjusted third bullet of Beastly Transformation
• Fixed several typos

Thank you supporters!

A heartfelt thank you to all my patrons, whose generous support helps make this work possible. And a special thank you to:

• Alex Whitehurst
• Alexander LeHane
• Andrew Porteous
• arawnannwn
• Ben
• bluewarbler
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• Danny Mendoza
• David Sharp
• expikah
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• Llewelyn Shingler
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And a very special thank you to Archmage-tier supporters!

• Grimm

Credits & References:

Abomination created by somanyrobots
Discord | Patreon

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All systems and spells used with permission of their creator.

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Playtesting

Coordinator: Roman Penna
Testers:

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Editing

None yet!

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Art

• Savage Packmate, by Mila Pesic © Wizards of the Coast
• Sure Strike (Innistrad: Crimson Vow) by Lie Setiawan, © Wizards of the Coast
• Shady Traveler, by Lie Setiawan © Wizards of the Coast
• Ravaging Blaze, by Aleksi Briclot © Wizards of the Coast
• Awoken Demon, by Tuan Duong Chu © Wizards of the Coast
• Krampus Card, artist unknown (public domain)
• Great Oak Guardian, by Steven Belledin © Wizards of the Coast
• Zul Ashur, Lich Lord, by PINDURSKI © Wizards of the Coast

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Background Image Stains

Jared Ondricek

Licensing

All rules & spell text in this document is licensed as CC-BY, under the Creative Commons Attribution 4.0 International license (CC-BY). Broadly, it can be republished freely or incorporated into commercial works as long as credit is given to the original creators.

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Includes spells from Spells That Don't Suck by Omega Ankh and somanyrobots, which is licensed CC-BY and available here.

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Includes spells from So Many Spells by somanyrobots, which is licensed CC-BY and available here.

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Includes spells from Kibbles' Casting Compendium 2.0 by KibblesTasty Homebrew LLC, which is licensed CC-BY and available here.

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5E SRD Content

• This work includes material taken from the System Reference Document 5.1 (“SRD 5.1”) by Wizards of the Coast LLC, available here.

• The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License available here.