Sorcerous Origin

Serpent Sorcery

Your innate magic comes from an eldritch connection you share with serpents. Sorcerers with this origin may trace their heritage back to find that a great grandparent was a yuan-ti, or perhaps the sorcerer made a bargain with a powerful naga, or is deemed important by one of the serpent gods.

Veins of Venom

Starting at 1st level, your attunement to serpent-kind gives you resistance to their bites. You have advantage on saving throws against poison, and resistance to poison damage.

Snake Charmer

At 1st level, you can call to snakes to aid you in a time of need. As a bonus action, you can call out to nearby serpents, and request there aid. At the beginning of your next turn, you summon a poisonous snake, which appears in an unoccupied space of your choice within 100 feet.

You can spend 1 sorcery point to instead summon a swarm of poisonous snakes, or a giant constrictor snake.

Any creatures summoned by this feature are friendly to you and your companions. Roll initiative for the creatures, which have their own turns. They obey any verbal commands that you issue them (no action required by you). If you don't issue any commands to them, they defend you from hostile creatures, but otherwise take no actions. The DM has the creatures' Statistics.

Creatures summoned with this feature disappear after a number of hours equal to your Charisma modifier.

You can use this feature a number of times equal to your proficiency bonus, and regain all expended uses after finishing a short or long rest.

Venomous Incantations

At 6th level, you have learned to verbally manipulate the arcane weave with the venom instilled in your words. When you cast a spell that has a verbal component, and deals damage, you can cause that spell to deal poison damage instead of the regular damage type. When you use this feature to change a spell's damage type to poison, you can add your Charisma modifier to the damage dealt.

Flavoring You Venomous Incantations Think about describing the effects of your spells differently when you use the Venomous Incantations feature. Here are some examples: Venomous Incantation, Fire Bolt. You hurl an ethereal green snake at a creature within range, it's fangs dripping with venom as it latches onto the target. Venomous Incantation, Ice Knife. You conjure forth a jade dagger with a curving snake-like blade, poison drips from it's tip as you hurl it towards your target. The blade fractures upon impact, sending razor sharp fragments flying in all directs.

Beguile and Influence

Starting at 14th level, you can weave magical deception into the words you speak, lowering the guard of a creature you wish to manipulate.

If you speak to a creature alone for at least 1 minute, you can attempt to gain that creatures full trust. At the end of the conversation, the target must succeed on a Wisdom saving throw against your spell save DC or be charmed by you or another creature of your choice. The target is charmed in this way for 1 day, or until it is attacked or damaged, or it witnesses its allies being attacked or damaged.

You must share a language with the target for this feature to work, and a creature with a challenge rating higher than your level is immune to this feature. If the target succeeds on its saving throw, the target has no hint that you tried to charm it.

Once you use this feature, you can't use it again until you finish a long rest.

Serpents of Nightmare

At 18th level, you can manipulate the brains of creatures around you, and force them into a state of ophidiophobia. As an action, you can attempt to seed the terror of snakes within one creature that you can see within 100 feet.

The target must succeed on a Wisdom saving throw or become frightened of you, and snakes. A frightened target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

If a target's saving throw is successful or the effect ends for it, the target is immune to this feature for the next 24 hours.

Whilst the target is frightened, snakes summoned by your Snake Charmer feature can add half your sorcerer level (rounded down), to any attack or damage rolls made against the target.