The Great Scaled One

At the time the yuan-ti were created, the sarrukh empires were monotheistic societies that worshiped the World Serpent. All other gods were viewed as inferior blasphemies, and the sarrukh believed that those who worshiped them should be either turned to the veneration of the Great Scaled One or destroyed. After the Mhairshaulk Empire fell, many yuan-ti and others under the sarrukh influence sought different fragments of the World Serpent to lead them to the truth, hoping to leave behind the dark decadence of their former masters. Most of these gods were forgotten long ago, but the worship of Sseth took root and became the foundation of modern-day yuan-ti religion. Today, the majority of yuan-ti worship Sseth with a strength and fervor that astonishes other beings.

Some individuals, however, still search for other gods to follow-usually because their own self-importance demands that they become the most favored mortal devotees of their divine patrons, and doing so is easier when there are few other worshipers with whom to compete. In particular, the worship of the older gods Merrshaulk, Dendar, Zehir, Sss'thasine'ss, and Varae still thrives in certain areas.

Expanded Spell List

1st-level Great Scaled One feature

The Great Scaled One lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you. A few additional thematic spells were added but not listed.

Great Scaled One Expanded Spells

Spell Level	Spells
1st	entangle, detect poison and disease
2nd	spiritual weapon, protection from poison
3rd	spirit guardians, haste
4th	divination, dominate beast
5th	geas, dominate person

Bonus Cantrip

1st-level Great Scaled One feature

At 1st level, you learn the poison spray cantrip. This spell counts as warlock cantrip for you but doesn't count against the number of cantrips you know.

Serpents Tounge

1st-level Great Scaled One feature

You are a master at deception and getting people to do what you want. You have expertise in both the charisma (Persuasion) and Charisma (Deception) skills. You can speak with and convey simple messages and concepts to snakes and other serpentine creatures, additionally You have advantage on Charisma (Persuasion) and Charisma (Deception) checks against Yuan-ti, snakes, and other serpentine creatures.

Fangs of the Serpent

6th-level Great Scaled One feature

Starting at 6th level, The first time you hit with a melee attack or cast a spell that deals damage on your turn, you can deal an extra (3d10) damage to the target. The extra damage is acid, cold, fire, lightning, poison, or psychic; you choose the type of damage when you gain this feature.

 

You can’t use this feature again until you finish a long rest. At 12th level, you can use this ability twice.

Scaled One's Blessings

10th-level Great Scaled One feature

Your actions and devotion to your patron have pleased them and intend they to reward you justly, and expect you to continue your worship and conquests in their name... 

Starting at 10th level you can choose one of these blessings bestowed upon you by your patron, once you choose a blessing you must spend 1 hour entreating and (or) praying to your patron before you are able to change your blessing.

Ceaseless Hunger

When you reduce a hostile creature to 0 hit points, you gain temporary hit points equal to your Charisma modifier + your warlock level (minimum of 1).

Additionally, when you gain temporary hitpoints from this feature you may expend 3 hit die and add triple your Charisma modifier to the number of temporary hit points gained for 1 minute.

Conjure Dreadform

As an action, you can tap into the nightmares of a creature it can see within 60 feet of it and create an illusory, immobile manifestation of the creature’s deepest fears, visible only to that creature. The target must make an Intelligence saving throw equal to your spell save DC. On a failed save, the target takes 2d10 psychic damage and is frightened of the manifestation, believing it to be real. You must concentrate to maintain the illusion (as if concentrating on a spell), which lasts for up to 1 minute and can’t be harmed. The target can repeat the saving throw at the end of each of its turns, ending the illusion on a success, or taking 2d10 psychic damage on a failure.

Additionally, you can expend 2 hit die and take damage equal to the amount rolled to have Conjure Dreadform also apply the paralyzed condition.

You can’t use this feature again until you finish a short or long rest.

Ophidian Transformation

You can use your action to polymorph into a Medium sized snake (That has the beast creature type) for up to 1 + your charisma modifier hours or turn back into your true form with a bonus action. Your statistics are the same in each form. Any equipment you're wearing or carrying isn’t transformed. If you drop to 0 hit points you stay in that form.

Additionally, you may expend 5 hit die and take damage equal to the amount rolled to instead transform into a huge-sized version of the snake you choose.

You can’t use this feature again until you finish a short or long rest.

Scaled One's Wrath

When you deal damage to a target with your Fangs of the Serpent you can force the target to make a wisdom saving throw equal to your spell save DC, on a success the target is unaffected; on a failure, the creature is subjected to an effect of your choice from the effects of the bestow curse spell for a duration of 1 minute but you must maintain concentration on this effect for it to continue

Whenever you expend a use of your Fangs of the Serpent ability, you can expend a hit die and roll a d8, on a 7 or 8 you take damage equal to the amount rolled and you regain the use of your Fangs of the Serpent.

Serpents Torpor

As an action, you can choose a number of creatures equal to your Charisma modifier that you can see within 60 feet of you. Each target must succeed on a Constitution saving throw equal to your spell save DC or fall into a magical sleep and be unconscious for 10 minutes. A sleeping target awakens if it takes damage or if someone uses an action to shake or slap it awake. This magical sleep has no effect on a creature immune to being charmed.

Additionally, You can expend 5 hit die to have the duration of your Serpents Torpor increase to an hour.

You can’t use this feature again until you finish a long rest.

Skin Of The Serpent

Your skin becomes chameleon-like, giving you advantage on Dexterity (Stealth) checks made to hide. Additionally, you may use your bonus action to shed your skin and free yourself from a grapple, shackles, or other restraints. If you spend 1 minute eating your shed skin, you regain hit points equal to half your hit point maximum.

You can’t use this feature again until you finish a long rest.

Master Of All That Slithers

14th-level Great Scaled One feature

Through your unwavering loyalty and devotion to your patron, they have granted you the ability to summon serpents to aid you in your endeavors.

You can cast conjure animals as a 7th level spell but you can only summon snakes. This spell does not require concentration when cast in this way. Each summoned creature gains a bonus to attack rolls, ability checks, and saving throws equal to your charisma modifier.

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