Sorcerer/Abyssal Legacy

Abyssal Legacy

The Infinite Layers of the Abyss are realms of chaos and evil incarnate, every layer populated by demons - horrifying extensions of the plane's power that exist only to kill and destroy, and each one more hostile and violent than the last. Your innate magic stems from the chaotic, churning energies of this plane, a terrible force that grants you great capacity for destruction and corruption. Some sorcerers of this origin can trace their powers back to extensive exposure to Abyssal corruption, or perhaps due to influence on their lineage from demonic forces, while others may have wrested their capabilities from a subdued demon in a dark ritual, tearing away its power and infusing it into themselves.

No matter the method of acquisition, those who wield the powers of Abyss tread a dangerous path, for their very blood yearns to be used in pursuit of devastation. A strong will is required to keep these compulsions in check, and those who succumb to them can be just as cruel and malevolent as a demon - or worse.

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Homebrew: The "Abyssak Legacy" sorcerer subclass was made by SargeBriar and published in the Sorcerer, Tweaked homebrew supplement.

Origin Spells

You gain origin spells at the sorcerer levels listed below.

Sorcerer Level	Spell
1st	chaos bolt
3rd	sunder
5th	fireball
7th	summon greater demon
9th	dominate person
11th	disintegrate

Unholy Speech

At 1st level, the tongue of demons comes as naturally to you as breathing. You can speak, read and write Abyssal.

Dark Reconstitution

Also at 1st level, you take on the unnatural resilience of a demon, allowing you to shrug off blows that would fell lesser mortals. Your hit point maximum increases by 1, and increases by 1 again whenever you gain a level in this class.

Additionally, when you take damage, you can use your reaction to halve the damage taken. Afterwards, you gain temporary hit points equal to your Charisma modifier + your sorcerer level (minimum of 1). Once you use this feature, you can't use it again until you finish a short or long rest.

Unhallowed Ground

At 6th level, you can infuse abyssal power into your destructive spells, leaving chaotic energy in their wake. When you cast a spell of 1st level or higher that deals damage and has an area of effect, you can spend 1 sorcery point to fill its area of effect with chaotic energy. The energy is difficult terrain, and at the start of your next turn it explodes, dealing force damage equal to your Charisma modifier to any creatures within it. The chaotic energy then disappears.

Obliterate

Also at 6th level, your power can eliminate any obstacle in your path, living or otherwise. Sorcerer spells you cast deal double damage to objects and structures.

Demonic Assimilation

At 14th level, the vile corruption that flows in your veins grants you abilities common to the greatest of demons. You have advantage on saving throws against poison and gain resistance to poison damage, as well as either fire, cold, or lightning damage. As an action, you can speak a word of power and magically teleport up to 60 feet to an unoccupied space you can see.

Reality Breach

At 18th level, you have attained true mastery over your demonic blood and can rend wide reality itself, creating a gateway to the chaotic and destructive forces of the Abyss. As an action, you can spend 6 sorcery points to tear open an abyssal breach in an unoccupied space within 60 feet of you, which persists for 1 hour or until you lose your concentration (as if you were concentrating on a spell). Each creature within 30 feet of the breach as it opens must make a Constitution saving throw, taking 7d6 force damage on a failed save or half as much on a successful one. A creature must also make this saving throw whenever it comes within 30 feet of the breach or starts its turn there.

If you maintain concentration on the breach for its whole duration, it stabilizes, no longer dealing damage and becoming dormant for 1 month, when it can be closed by dispel magic cast at 5th level or above or if you use your action to do so. After 1 month, it becomes a 10 feet tall, 10 feet wide stable portal, serving as a gateway between a random layer of the Abyss (determined by the DM) and the plane on which this feature was originally used. The presence of such a breach is anathema to natural life, killing and withering all plants within a mile radius. The breach remains until a month passes, you die, you create another stabilized breach, or it is forcibly closed by the will of a demon lord, dispel magic cast at 9th level, or similarly powerful effects.