The Fathomless

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Subclass Options

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 (water only)
5th	Bigby's hand (appears as a tentacle), cone of cold

Tentacle of the Depths

1st-level Fathomless feature 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 ld8 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

1st-level Fathomless feature You gain a swimming speed of 40 feet, and you can breathe underwater.  

Oceanic Soul

6th-level Fathomless feature 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

6th-level Fathomless feature 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 ld8. When you reach 10th level in this class, the damage reduced by the tentacle increases to 2d8.  

Grasping Tentacles

10th-level Fathomless feature 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 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.  

Fathomless Plunge

14th-level Fathomless feature 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.