Prophet Table

Prophet of an Elder God

At 1st level you can magically summon the tentacles of Nagakabouros. As a bonus action you create a tentacle at a point you can see within 30 feet of you. The tentacles lasts for 1 Minute or until it is killed (the tentacle 1 HP and 10 AC).
When you create a tentacle you can make a melee spell attack against one creature within 15 feet of it. On a hit the target takes 1d4 cold damage. The damage increases according to the Prophet Table above. If the target of a tentacle dies you regain hit points equal to half your Warlock level + your Constitution modifier
As a bonus action on your turn you can command all tentacles to make a melee spell attack against a target within 15 feet of them.

You can summon tentacles a number of times equal to your Charisma modifier plus your proficiency bonus, and you regain all expended uses when you finish a short rest.

Gift of Nagakabouros

Also at 1st level, you gain a swimming speed of 40 feet, and you can breathe underwater.

You also gain access the Tentacle Slam Cantrip

Pact Boon

At 3rd level, your otherworldly patron bestows a gift upon you for your loyal service.
Pact of the Spirit

You can bond your soul to a chosen melee weapon (magical or not). Over the course of 1 hour, which can be done during a Short Rest, you perform a ritual which bonds you to the chosen weapon. While bonded to this weapon, you cannot be disarmed (unless you are slain or fall unconscious) as ghostly tentacles latch around your arm, holding the weapon in at least one of your hands, you can switch hands normally. If you left your weapon on the ground within 20ft of you, you can reach out toward it, causing spectral tentacles to reach out and latch to your arm, pulling your weapon to you. You can add your Constitution Modifier to your attacks with this weapon and damage, instead of your Strength or Dexterity. The weapon ceases being your bound weapon if you die, if you perform the 1-hour ritual on a different weapon, or if you use your 1-hour ritual to break your bond to it. You cannot effect Sentient weapons with this ability.

Additionally the tentacles allow you to carry more weight, granting you proficiency with medium armor.

You also gain access to the Harsh Lessons spell. This spell doesn't count against your spells known.

Guardian Spirit

At 6th level, your tentacles can defend you and others, interposing itself between them and harm. When you or a creature you can see takes damage while within 10 feet of the tentacle, you can use your reaction to choose one of those creatures and reduce the damage to that creature by two die of your tentacle damage. When you reach 10th level in this class, the damage reduced by the tentacle increases to 3 die of your tentacle damage.

Great Kraken's Gift

At 10th level, your connection with your patron and the universe becomes more powerful than you expected. You now heal for half the damage dealt by your tentacles, including the damage from the Tentacle Slam and Harsh Lessons spells.

Additionally your Tentacles last until they are killed if you are within 60 feet of them.

Leap of Faith

At 14th level, Nagakabouros has bestowed upon you the strength and power of life and the seas.As an action choose a location within 30ft of you, any enemies within a 15ft radius of the chosen location must make a Dex. Save. equal to you spell save DC or take 6d10 Bludgeoning Damage, or half as much on a success, as you come slaming down in the area. You spawn a number of tentacles equal to the number of enemies (including any spirits created by Test of Spirit) caught in the radius. These tentacles, and every tentacle in the radius, instantly slams down on a target of your choosing within range. These tentacles last for a number of rounds equal half your Charisma Modifier (rounded up), and do not count toward your Prophet of an Elder God usages. You must finish a long rest before using this ability again.

Test of Spirit

Prerequisite: Pact of the Spirit feature

As an action you strike out with your bound weapon toward a target within 30ft of you, sending forth a spectral tentacle to grapple the targets spirit. The target makes a Wisdom saving throw against your Warlock spell save DC. On a failed save you grapple the target's spirit, forcing it to stand next to you as an echo of your target. The spirit's AC is equal the 10 plus your targets Wisdom modifier, and has a number of hit points equal to half of the target's current hit points, and it automatically fails all Strength, Dexterity and Constitution saving throws. All its other saving throws are made at disadvantage and with the statistics of the target. Any damage dealt to this spirit echos the damage to the spirit owner. This spirit lasts for a number of rounds equal to twice your Proficiency Bonus, or until slain. If the target ends its turn willingly farther away from you than where it started, it takes 1d10 psychic damage. You can choose if this damage is lethal or nonlethal. You can use this ability twice per short rest.

At 7th level your ability to test the spirit of creatures greatly increases any creature who has his spirit removed is unable to tell lies.

Deep Whispers

Prerequisite: Nagakabouros Patron

You gain the ability understand and speak to all creatures of the sea as if with the Speak With Animals spell, you also gain dark vision of 60ft.

Grasping Tentacles

Prerequisite: Nagakabouros Patron

Your tentacles gain the ability to move creatures around. When you use your Prophet of the Elder God bonus action to make a melee spell attack you can shove or pull a creature up to 10 feet instead of doing damage.

Gift Unto Thee

Prerequisite: 9th level, Nagakabouros Patron
You can touch a number of creatures equal to your constitution modifier and grant them water breathing, a swimming speed of 30ft, and dark vision of 60ft for one hour. You can also now use your reaction to have a summoned tentacle make an attack of opportunity within its reach.

Sailor at Heart

Prerequisite: Nagakabouros Patron
You add your proficiency bonus to all rolls that have to do with sailing or the sea (this includes constelation, and knowing true north). You also gain Dark Vision of 60ft due to your many days sailing at night.

Craving of Nagakabouros

Prerequisite: 5th level, a spell with Nagakabouros in its name

Whenever you reduce a creature to 0 hitpoints with a spell with Nagakabouros in its name, you gain a bonus of +2 to your AC for 1 minute. If you reduce another creature to 0 hitpoints while you have this bonus, its duration increases by 1 minute but the bonus to your AC remains the same.

Sailor's Endurance

Prerequisite: 5th level, Nagakabouros Patron
Your body has grown accustom to the harsh cool sea air. You gain resistance to cold damage. You can go a number of days without eating and sleeping equal to your constitution modifier without taking exhaustion, however if you go your full modifier amount of days without doing either you take two levels of exhaustion.

Chilling Curse

Prerequisite: 5th level, , Nagakabouros Patron
Your Warlocks Curse draws it's power deep from the ocean. The damage gets changed to cold damage and the damage die gets increased to the next highest Die. Additionally the movement speed of the target gets reduced by 10 feet.

Voice of Nagakabouros

2nd level enchantment spell

• Casting Time: 1 action
• Range: 30 feet
• Components: V, S, M (the radula of an octopus)
• Duration: 1 hour

A creature of your choice you can see within range must make a Wisdom saving throw. On a failure, its speech becomes unintelligible to all creatures except you and aberrations for the duration. Additionally, as long as it is enchanted in this way, whenever the creature casts a spell that requires verbal components, it must succeed on a Wisdom saving throw against your spell save DC or the spell fails and has no effect.

At higher levels. When you cast this spell using a spell slot of 3rd level or higher, the spell's duration increases by 1 hour for each slot level above 5th.

Coil of Nagakabouros

4th level conjuration spell

• Casting Time: 1 action
• Range: 90 feet
• Components: V, S, M (a pickled squid tentacle)
• Duration: Concentration, up to 1 minute

You cause dark, spectral tentacles to reach up from the ground and envelop a creature you can see within range. The creature must make a Strength saving throw. On a failure it takes 4d8 cold damage and is restrained until the spell ends. On a success, it take half as much damage and isn't restrained.

A creature restrained by this spell repeats the saving throw at the end of each of its turns, it takes 4d8 cold damage and is still restrained on a failure, or half as much and is no longer restrained on a success.

As an action on your turn, if the summoned tentacles aren't restraining a creature, you can choose a creature you can see within range, and force that creature to make a Strength saving throw, on a failure it is restrained by the tentacles as they spring up around it until the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the spell's damage increases by 1d8 for each slot level above 5th.

Visions of Nagakabouros

5th level divination spell

• Casting Time: 1 action
• Range: 30 feet
• Components: V, S, M (a squid brain)
• Duration: 10 minutes

You choose up to three willing creature you can see within range and imbue them with terrible knowledge and visions of the future. The creatures each takes 1d8 psychic damage, this damage can't be prevented. The creatures add 1d8 to all ability checks attack rolls and saving throws they makes for the duration.

Investiture of Nagakabouros

6th level transmutation spell

• Casting Time: 1 action
• Range: Self
• Components: V, S
• Duration: Concentration, up to 1 minute

Strange otherwordly whispers surround you as your veins become black. You gain the following benefits for the duration:

• You are immune to psychic damage and have resistance to cold damage.
• You can move across difficult terrain created by tentacles or darkness without spending extra movement.
• You gain a blindsight of 15 feet.
• As an action you can cause spectral dark tentacles to lash out at those around you. Each creature within 15 feet of you must make a Strength saving throw. A creature takes 3d8 cold damage on a failed save, or half as much on a successful one. If a creature fails this save, it also can't take reactions until the end of its next turn.

Herald of Nagakabouros

7th level transmutation spell

• Casting Time: 1 action
• Range: Self
• Components: V, S, M (a statuette of a mindflayer, a beholder or another aberration, worth at least 500 gp)
• Duration: Concentration, up to 1 minute

You are surrounded by strange unintelligible whispers as you gain aberration-like features, becoming a herald of Nagakabouros. You gain the following benefits until the spell ends:

• Telepathy. You can communicate telepathically with creatures you can see within 120 feet of you.

• Tentacles. Your speed increases by 10 feet, and you gain the ability to move up, down, and across vertical surfaces and upside down along ceilings, while leaving your hands free. You also gain a climbing speed equal to your walking speed.

• Mind blast. When you cast this spell, and as an action on subsequent turns for the duration, you can target a creature within 90 feet of you with a blast of psychic energy. The creature must make an Intelligence saving throw. It takes 5d8 psychic damage and is stunned until the start of your next turn on a failed save, or half as much damage and isn't stunned on a successful one.