Warlock (Fathomless)

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Overview & Creation

Level	Proficiency Bonus	Features	Cantrips Known	Spells Known	Spell Slots	Slot Level	Invocations Known
1	+2	Otherwordly Patron : The Fathomless, Pact Magic, Pact Feature : Tentacle of the Deep, Patron Feature : Gift of the SeaSpellcasting	2	2	1	1st	-
2	+2	Eldritch Invocations	2	3	2	1st	2
3	+2	Pact Boon	2	4	2	2nd	2
4	+2	Ability Score Improvement	3	5	2	2nd	2
5	+3		3	6	2	3rd	3
6	+3	Patron Feature : Oceanic Soul, Patron Feature : Guardian Coil	3	7	2	3rd	3
7	+3		3	8	2	4th	4
8	+3	Ability Score Improvement	3	9	2	4th	4
9	+4		3	10	2	5th	5
10	+4	Patron Feature : Grasping Tentacles	4	10	2	5th	5
11	+4	Mystic Arcanum (6th level)	4	11	3	5th	5
12	+4	Ability Score Improvement	4	11	3	5th	6
13	+5	Mystic Arcanum (7th level)	4	12	3	5th	6
14	+5	Patron Feature : Fathomless Plunge	4	12	4	5th	6
15	+5	Mystic Arcanum (8th level)	4	13	4	5th	7
16	+5	Ability Score Improvement	4	13	4	5th	7
17	+6	Mystic Arcanum (9th level)	4	14	4	5th	7
18	+6		4	14	4	5th	8
19	+6	Ability Score Improvement	4	15	4	5th	8
20	+6	Eldritch Master	4	15	4	5th	8

 

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Class Features

Level 1

 

Pact Magic

Your arcane research and the magic bestowed on you by your patron have given you facility with spells. For rules regarding Warlock Spellcasting, see Spellcasting.  

Otherwordly Patron: The Fathomless

 

Expanded Spell List

The Fathomless 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.

Spell Level	Spells
1st	Create or Destroy Water, Thunderwave
2nd	Gust of Wind, Silence
3rd	Lightning Bolt, Sleet Storm
4th	Control Water, Summon Elemental
5th	Bigby's Hand (appears as a tentacle), Cone of Cold

Tentacle of the Deep

At 1st level, you can magically summon a spectral tentacle that strikes at your foes. As a bonus action, you create a 10-foot-long tentacle at a point you can see within 60 feet of you. The tentacle lasts for 1 minute or until you use this feature to create another tentacle.   When you create the tentacle, you can make a melee spell attack against one creature within 10 feet of it. On a hit, the target takes 1d8 cold damage, and its speed is reduced by 10 feet until the start of your next turn. When you reach 10th level in this class, the damage increases to 2d8.   As a bonus action on your turn, you can move the tentacle up to 30 feet and repeat the attack .   You can summon the tentacle a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.  

Gift of the Sea

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

Level 2

Eldritch Invocations

In your study of occult lore, you have unearthed eldritch invocations, fragments of forbidden knowledge that imbue you with an abiding magical ability.   At 2nd level, you gain two eldritch invocations of your choice. When you gain certain warlock levels, you gain additional invocations of your choice, as shown in the Invocations Known column of the Warlock table.   Additionally, when you gain a level in this class, you can choose one of the invocations you know and replace it with another invocation that you could learn at that level.   A level prerequisite in an invocation refers to warlock level, not character level. For the available invocations in Mundus, see the dedicated parts of the Feats article. You can copy these to your sheet at the Feats section of your sheet.  

Level 3

Pact Boon

At 3rd level, your otherworldly patron bestows a gift upon you for your loyal service. You gain one of the following features of your choice.

• Pact of the Blade
  • You can use your action to create a pact weapon in your empty hand. You can choose the form that this melee weapon takes each time you create it. You are proficient with it while you wield it. This weapon counts as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.
  • Your pact weapon disappears if it is more than 5 feet away from you for 1 minute or more. It also disappears if you use this feature again, if you dismiss the weapon (no action required), or if you die.
  • You can transform one magic weapon into your pact weapon by performing a special ritual while you hold the weapon. You perform the ritual over the course of 1 hour, which can be done during a short rest.
  • You can then dismiss the weapon, shunting it into an extradimensional space, and it appears whenever you create your pact weapon thereafter. You can't affect an artifact or a sentient weapon in this way. The weapon ceases being your pact weapon if you die, if you perform the 1-hour ritual on a different weapon, or if you use a 1-hour ritual to break your bond to it. The weapon appears at your feet if it is in the extradimensional space when the bond breaks.
• Pact of the Chain
  • You learn the Find Familiar spell and can cast it as a ritual. The spell doesn't count against your number of spells known.
  • When you cast the spell, you can choose one of the normal forms for your familiar or one of the following special forms: imp, pseudodragon, quasit, or sprite.
  • Additionally, when you take the Attack action, you can forgo one of your own attacks to allow your familiar to use its reaction to make one attack of its own.
• Pact of the Tome
  • Your patron gives you a grimoire called a Book of Shadows. When you gain this feature, choose three cantrips from any class's spell list. While the book is on your person, you can cast those cantrips at will. They are considered warlock spells for you, and they needn't be from the same spell list. They don't count against your number of cantrips known.
  • If you lose your Book of Shadows, you can perform a 1-hour ceremony to receive a replacement from your patron. This ceremony can be performed during a short or long rest, and it destroys the previous book. The book turns to ash when you die.
• Pact of the Talisman
  • Your patron gives you an amulet, a talisman that can aid the wearer when the need is great. When the wearer fails an ability check, they can add a d4 to the roll, potentially turning the roll into a success. This benefit can be used a number of times equal to your proficiency bonus, and all expended uses are restored when you finish a long rest.
  • If you lose the talisman, you can perform a 1-hour ceremony to receive a replacement from your patron. This ceremony can be performed during a short or long rest, and it destroys the previous amulet. The talisman turns to ash when you die.

 

Level 4

Ability Score Improvement

When you reach 4th level, you can increase one Ability Score of your choice by 2, or you can increase two Ability Scores of your choice by 1. Through this way, you can't increase an Ability Score beyond 20. Alternatively, you can pick a feat.  

Level 5

 

Level 6

Oceanic Soul

At 6th level, you are now even more at home in the depths. You gain resistance to cold damage. In addition, when you are fully submerged, any creature that is also fully submerged can understand your speech, and you can understand theirs.  

Guardian Coil

At 6th level, your Tentacle of the Deeps 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 1d8. When you reach 10th level in this class, the damage reduced by the tentacle increases to 2d8.  

Level 7

 

Level 8

Ability Score Improvement

For detail see Ability Score Improvement  

Level 9

 

Level 10

Grasping Tentacles

Starting at 10th level, You learn the spell Evard's Black Tentacles. It counts as a warlock spell for you, but it doesn't count against the number of spells you know. You can also cast it once without using a spell slot, and you regain the ability to do so when you finish a long rest.   Whenever you cast this spell, your patron's magic bolsters you, granting you a number of temporary hit points equal to your warlock level. Moreover, damage can't break your concentration on this spell.  

Level 11

Mystic Arcanum

At 11th level, your patron bestows upon you a magical secret called an arcanum. Choose one 6th-level spell from the warlock spell list as this arcanum.   You can cast your arcanum spell once without expending a spell slot. You must finish a long rest before you can do so again.   At higher levels, you gain more warlock spells of your choice that can be cast in this way: one 7th-level spell at 13th level, one 8th-level spell at 15th level, and one 9th-level spell at 17th level. You regain all uses of your Mystic Arcanum when you finish a long rest.  

Level 12

Ability Score Improvement

For detail see Ability Score Improvement  

Level 13

 

Level 14

Fathomless Plunge

When you reach 14th level, you can magically open temporary conduits to watery destinations. As an action, you can teleport yourself and up to five other willing creatures that you can see within 30 feet of you. Amid a whirl of tentacles, you all vanish and then reappear up to 1 mile away in a body of water you've seen (pond size or larger) or within 30 feet of it, each of you appearing in an unoccupied space within 30 feet of the others.   Once you use this feature, you can't use it again until you finish a short or long rest.  

Level 15

 

Level 16

Ability Score Improvement

For detail see Ability Score Improvement  

Level 17

 

Level 18

 

Level 19

 

Level 20

Eldritch Master

At 20th level, you can draw on your inner reserve of mystical power while entreating your patron to regain expended spell slots. You can spend 1 minute entreating your patron for aid to regain all your expended spell slots from your Pact Magic feature. Once you regain spell slots with this feature, you must finish a long rest before you can do so again.

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Starting Equipment

You start with the following equipment, in addition to the equipment granted by your background:

• (a) a light crossbow and 20 bolts or (b) any simple weapon
• (a) a component pouch or (b) an arcane focus
• (a) a scholar's pack or (b) a dungeoneer's pack
• Leather armor, any simple weapon, and two daggers

 

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Spellcasting

Spellcasting

Cantrips

You know two cantrips of your choice from the warlock spell list. You learn additional warlock cantrips of your choice at higher levels, as shown in the Cantrips Known column of the Warlock table.  

Spell Slots

The Warlock table shows how many spell slots you have. The table also shows what the level of those slots is; all of your spell slots are the same level. To cast one of your warlock spells of 1st level or higher, you must expend a spell slot. You regain all expended spell slots when you finish a short or long rest.   For example, when you are 5th level, you have two 3rd-level spell slots. To cast the 1st-level spell Witch Bolt, you must spend one of those slots, and you cast it as a 3rd-level spell.  

Spells Known of 1st Level and Higher

At 1st level, you know two 1st-level spells of your choice from the warlock spell list.   The Spells Known column of the Warlock table shows when you learn more warlock spells of your choice of 1st level or higher. A spell you choose must be of a level no higher than what's shown in the table's Slot Level column for your level. When you reach 6th level, for example, you learn a new warlock spell, which can be 1st, 2nd, or 3rd level.   Additionally, when you gain a level in this class, you can choose one of the warlock spells you know and replace it with another spell from the warlock spell list, which also must be of a level for which you have spell slots.  

Spellcasting Ability

Charisma is your spellcasting ability for your warlock spells, so you use your Charisma whenever a spell refers to your spellcasting ability. In addition, you use your Charisma modifier when setting the saving throw DC for a warlock spell you cast and when making an attack roll with one.   Spell save DC = 8 + your proficiency bonus + your Charisma modifier   Spell attack modifier = your proficiency bonus + your Charisma modifier  

Spellcasting Focus

You can use an arcane focus as a spellcasting focus for your warlock spells.

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Subclass Options

You have plunged into a pact with the deeps. An entity of the ocean, the Elemental Plane of Water, or another otherworldly sea now allows you to draw on its thalassic power. Is it merely using you to learn about terrestrial realms, or does it want you to open cosmic floodgates and drown the world?   Perhaps you were born into a generational cult that venerates the Fathomless and its spawn. Or you might have been shipwrecked and on the brink of drowning when your patron's grasp offered you a chance at life. Whatever the reason for your pact, the sea and its unknown depths call to you.   Entities of the deep that might empower a warlock include krakens, ancient water elementals, godlike hallucinations dreamed into being by kuo-toa, merfolk demigods, and sea hag covens.   Source: Tasha's Cauldron of Everything  

Mundus-specific

In Mundus the distinction between Clerics, Paladins and Warlocks isn't as harsh as in the D&D universe. Thus, make up a patron of your own, or check out The Pantheon to get inspired. Any powerful demon, fey, Daedra or Aedra, may serve as a Warlock patron.