Half Demon (3.5e Template)

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A half-demon casting a spell.

Half Demon[edit]

Beings born of the union (willing or otherwise) of a humanoid and a demon.

Half demons look much like a member of the race its humanoid parent belongs to. A notable exception is the pure white hair that is a shared trait among those of the Half Demon type. When transformed their white hair stands up in a multitude of spikes and their skin turns a pitch black. Any cloths or armor they are wearing at the time take on a Demonic look and seem to fuse with their bodies. They are also surrounded by a twisting and burning aura of blood red demonic energy. They sprout bat-like wings which allow them to fly.

Creating a Half Demon[edit]

Half Demon is an inherited template that can be added to any living, corporeal creature with an Intelligence score of 4 or more.

Size and Type[edit]

The creature’s type changes to outsider. Do not recalculate Hit Dice, base attack bonus, or saves. Size is unchanged. Half-Demons are normally native outsiders.


Half Demons have the extraordinary ability to bring the power of their demonic heritage to bear on their opponents. This transformation can be used as a swift action to cange between forms at will and cannot be suppressed by any means short of unconsciousness. This is because humanoid creatures cannot handle such an influx of energy; it is too powerful, and such demonic energy clashes with the nature of humanoids. As such, for every round the Half Demon remains in this form, it takes 1d4 points of damage on its turn before it acts. While in this form, Half Demons gain +10 Strength, +10 Constitution, +20 Intimidate bonuses and Times 5 Movement Speed on ground. They can also fly at twice their land speed, with perfect maneuverability. While in this form, the half demin flies into a rage of sorts, attacking any threats relentlessly and without mercy. The half demon may even turn on his comrades at the DM's discretion. While in demon form, any divine magic a half demon uses changes into pure deminic energy from hell and powered by the negative energy plane.

Special circumstances: When the half demon's hp drops to 25% or lower, the half demon has a 75% chance of involuntarily changing form and going on a rampage. The player does not take the d4 damage when this is activated.


The Half Demons base land speed is the same as the base creature, +80ft.

Armor Class[edit]

Half Demons gain a +8 Natural Armor bonus to their AC while transformed.


Half Demons retain all the attacks of the base creature.

Special Qualities[edit]

A Half Demon has all the special qualities of the base creature, plus darkvision up to 60 ft. They possess damage reduction 5 vs acid, cold, or fire damage (must choose one), and are immune to either electricity or poison damage (must choose one). Half Demons can also communicate telepathically with any creatures that speak Abyssal, but only in that language. At level 11, a Half Demon gains the ability to summon lesser demons from the Outer Planes. Once per day, such a Half Demon may summon 2d10 Dretches with a 35% chance of success. This is the equivalent of a 3rd level spell. While in demon form, the demon gains natural weapons, such as a bite, claws, tail sweep, and horns. These natural weapons damage is calculated as if the creature was 2 size categories larger than it actually is. The half demin also gains a breath weapon only while transformed that does 1d6 demonic (negative) energy damage/level of character. The breath weapon can be used 1d6 times per day.


+6 Str, +6 Dex, +4 Con, +6 Cha


Half Demons have +6 racial bonuses to Intimidate, Balance, Climb, and Jump checks.


As the base creature.


Half Demons are too chaotic to form into any large groups, but individuals have been known to attract one another.

Challenge Rating[edit]

as base creature's +1


Any, but alignment changes to chaotic evil when transformed.


By character class.

Level Adjustment[edit]

as base creature's LA +1

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