The Body of the Patron

The Body of the Patron allows the Warlock to bring their patron into the world as a part of themselves, gaining benefits according to their patron and the wishes of the patron.

Each Patron can bestow upon their warlocks different forms. Some warlocks may become an image of their patron, or simply be morphed by their patron into a mockery of what they normally are.

(The dm and player can work together to decide the appearance of what the transformed state may look like, however it must keep both the body shape and be at most 1 foot larger than the original creature)

The transformation has to originate from the Patron, so when transformed its obvious to most people that this creature is in the service of their patron as it shares similarities to the patron.

Expanded spell list

Your Patron grants you:

Mage armour, Armour of Agathys, Chill touch, Vampiric Touch, Booming Blade, Fly, Misty step, water breathing and Finger of Death.

All of the above spells are cast normally for a warlock but originate from your transformed state.

Transformation

Starting at 1st level,

You can tranform your being to become one with your Patron, your physicality changes and you gain Temporary Hit Points equal to twice your warlock level + your Charisma modifier (minimum of one). The transformation can be achieved by using a bonus action to draw upon the power of your patron, this transformation lasts for one minute, and you can transform up to a number of times equal to your Charisma modifier per long rest (minimum of one time). If you fall to, or below, 0 Hit Points then the transformation ends.

 Any melee attack you make you can use your charisma modifier instead of strength or dexterity when calculating both the hit and damage roll.

Patron's own

Starting at 6th level, you can call on your patron to invigorate you. When you make an ability check or a saving throw, you can use this feature to add a d10 to your roll. You can do so after seeing the initial roll but before any of the roll’s effects occur.

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

Together in Body and Mind

Starting at 10th level, you can choose one damage type when you finish a short or long rest. You gain resistance to that damage type until you choose a different one with this feature. Damage from magical weapons or silver weapons ignores this resistance.

You begin to take on more traits of your Patron, even when youre not transformed, such as: Discolouration of skin, body structure/posture, eye shape or colour etc.

Also your Patron influences your mind, changing your world view and beliefs as it begins to make you its own. You two become closer even if you yourself may not realise whats happening, as the Patron begins your permanent transformation.

Patron's embrace

Starting at 14th level,

When you hit a creature with an attack, you can use this feature to envelope them withing your Patron's embrace. You deal 6d10 psychic damage to the target as your Patron infiltrates the target's mind.

At the end of the current turn you heal half the damage dealt to the target by this feature, and if the health gained reaches your maximum health then your maximum health is increased to match how much health you healed beyond max. Your maximum health returns to its normal value after the current battle has ended.

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

Unity

Starting at 14th level,

Your Patron grants you the ability to transform for extended periods, each use of the transformation feature now lasts 1 hour. Whilst in this heightened transformation you can see with blindsight of up to your normal sight range, you can replace the modifier for any ability check that requires you to physically act with your Charisma modifier and once per transformation you can devour a small sized creature to gain its Hit Points as Temporary Hit Points.

If you fall below half of your maximum Hit points whilst tranformed then you must roll a d20, on a 10 or higher you manage to keep control over your mind as your patron urges you to feed upon your enemies to save yourself, but on a 9 or lower then you lose control as your patron takes over your being for the remainder of the transformation with the sole goal to feed and survive.