The Nameless Outer Entity Patron

Some impossibly powerful outer entity use you to have presence in the mortal plane. This nameless entity's desires are either unknow or too incomprehensible to understand it, so you must be either mad or too desperate to fulfill your own wish to make a pact with this being. No god have power on this creature, no good will interfere on this pact. Only the strongest will can overtake the power of this unknow deity.

Level 3: The Nameless Outer Entity Patron Spell list

When you reach a Warlock level specified in the The Nameless Outer Entity Patron Spells table, you thereafter always have the listed spells prepared.

Warlock Level	Spells
3	Command, Crown of Madness, Suggestion
5	Fear, Nondetection
7	Arcane Eye, Blight
9	Dominate Person, Geas

 

Level 3: Eldritch Mind Enforcement

At Lv 3, your mind is enforcement by your patron, making your mind stronger against unwanted guests. You gain the following benefits:
-You have Advantage on Wisdom Saving Throws.
-You can’t be targeted by any Divination spell or perceived through magical scrying sensors as if you being affected by the Nondetection spell.
-When you take a Long Rest, you can choose a condition between Charmed, Frightened or Paralyzed, you have immunity to the first time you were to be affected by that condition.

Level 6: Aberration Eldritch Form

At lv 6, as a Bonus Action you can let your Patron to overcome a bit on your physical body, letting him (or more likely THAT) to partially turn your body in an body-horror amalgamation beast of flesh and bones that grants you the following effects for 1 minute:

-You have Resistance to Psychic, Necrotic, Bludgeoning, Piercing and Slashing damage, but you become vulnerable to Radiance, Force, Acid and Fire damage.
-You deal additional damage on Melee attacks equal to your Proficiency Bonus and the damage of your melee attacks may be Necrotic, Poison or Force damage (Your choice).
-When an enemy at 5 ft of you is reduce to 0 HP, you can take a reaction to consume his body if its a Large or smaller creature to regain Hit Points equal to 3D8 + Your Proficiency Bonus.
The Hit Points you regain with this feat increase in 1D8 at Lv 11 (4D8) and at Lv 16 (5D8).

This transformation ends early if you die or have the Incapacitated. You can take a Bonus Action to extend the duration of this transformation, but if you do, you take 2D8 of damage for every time you do so when it ends.
If you have the Pact of the Blade invocation, your Pact weapon is fused with your flesh for the duration so you can still use it and you cant drop it.

You can use this feat a number of times equal to your Proficiency Bonus and you regain all uses of it when you finish a Long Rest.

Level 6: Forbidden Idolo

When you take a Short Rest or Long Rest, you can craft a forbidden Idolo by making an esoteric unholy ritual. That Idolo can be use as your Arcane Focus and while is in your possession, you gain Advantage on Intelligence (Arcana) Checks. The Idolo emits a purple Dim-Light when there's any Fiend, Fey, Undead or Celestial at 60ft of you and when there's some kind of magic on the zone when you are. You can spend one pact slot to imbue the Idolo in an 1 hour Ritual with an Spell that you have prepared; you can cast the Spell stored in the Idolo as an Action without using a Pact Slot. When you do that, the Idolo brokes and you cant craft another until you finish a Long Rest.

Level 10: Outer Influence

Yours outer psychic powers grants by your patron now allows you to invade your enemies mind with visions of the Cosmic Horrors beyond the mortal compression. Once per Long Rest, you can cast the Fear spell once without using a pact slot; also, any enemy that you can see that have the Charmed, Frightened or Paralyzed condition become vulnerable to Psychic, Poison or Necrotic damage (your choice). Additionally, you have Advantage on Charisma (Intimidation) Checks that you make.

Level 14: Aberration Eldritch Form Empowered

Your Aberration Eldritch Form transformation gets empowered by the entity that you serve granting you additional effects:

-Your type becomes Aberration and you gain Temporal Hit Points equal to your Warlock Level when you transform for the first time.
-Your size becomes Large and enemies smaller than you cant take opportunity attacks while they are at 10 ft of you.
-Once per turn, you gain Advantage on your first attack against a creature.

Now you take 4D8 of damage for every time you extend the duration of the transformation when you return to your normal form.