Pact Boon: Pact of the Vessel

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 Vessel

You can channel the essence of your patron in your body and become a vessel of its otherworldly might.

You can use an action to transform yourself into a creature with a Challenge Rating equal or less to half your warlock level rounded down. Your patron determines which kind of creature you can choose. You can use this feature twice. You regain expended uses when you finish a short or long rest.

 

Patron	Creature
The Archfey	Feys
The Fiend	Demons
The Great Old One	Aberrations
The Undying	Undead
The Celestial	Celestials
The Hexblade	Devils
The Shadow Dragon	Dragons

 

The transformation lasts for 1 minute, or until you drop to 0 hit points or die.

Your game statistics, including mental ability scores, are replaced by the statistics of the new form. You retain your alignment and personality.

You assume the hit points of your new form, and when you revert to your normal form, you return to the number of hit points you had before you transformed.

If you revert as a result of dropping to 0 hit points, any excess damage carries over to your normal form. As long as the excess damage doesn't reduce your normal form to 0 hit points, you aren’t knocked unconscious.

You are limited in the actions you can perform by the nature of your new form, and you can't speak, cast spelIs, or take any other action that requires hands or speech, unless your new form is capable of such actions.

Your gear melds into the new form. You can't activate, use, wield, or otherwise benefit from any of your equipment.

Because of the nature of this dramatic transformation you get one point of exhaustion after you revert to your normal form.

 

Quote

“Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn. In his house at R'lyeh dead Cthulhu waits dreaming.”

Description

This was meant to be an additional Pact option for every warlock. At the moment there is no option on beyond to create such a feature neither invocations so i decided to try it this way. I was inspired by the true polymorph spell and the druid's wild shape. - Please enjoy the new version and dont hesitate to leave a comment below.

Eldritch Invocation: Greater Vessel

Prequisite: 9th level, Pact of the Vessel

You can use both uses of your Transformation to transform into a creature with a challenge rating equal to your warlock level. After you revert to your normal form you suffer three levels of exhaustion (instead of two).

Eldritch Invocation: Otherwordly Avatar

Prequisite: 18th level, Pact of the Vessel

Your transformation becomes permanent. You are permanently linked to your Patron an can communicate with your Patron at will as described in the Commune Spell.

This drastic and permanent transformation alters your personality - roll once on the following madness table:

d100	madness
01-10	„I must consume everything i can!“
11-20	“I am compelled to make the weak suffer.”
21-30	“I rail against the laws and customs of civilization, attempting to return to a more primitive time”
31-40	“My mind is slipping away, and my intelligence seems to wax and wane”
41-50	“My perception of reality doesn’t match anyone else’s. It makes me prone to violent delusions that make no sense to anyone else.”
51-60	“I see those who oppose me not as people, but as beasts meant to be preyed upon.”
61-70	“There is more than one mind inside my head.”
71-80	“My anger consumes me. I can't be reasoned with when my rage has been stoked.”
81-90	“I have intermittent hallucinations and fits of catatonia.”
91-100	“There is only one solution to my problems: kill them all!”