The Collective Intelligence

Your patron is the Collective Intelligence hailing from a purely cognitive realm of beyond ordinary existence. The Collective Intelligence is a truly neutral force of nature which bonds to individuals viewed as good vessels to experience the variety of the world, often given to following impulses or adventure. The Collective Intelligence will choose which spells you learn and which eldritch invocations you gain. The Collective Intelligence is a form of hive mind, unlike other hive minds the Collective Intelligence is not unified in purpose. While the judgment of the Collective Intelligence can be fractured, random, and short sighted at times, it is also capable of perfect clarity and following deep ideas. The Collective Intelligence is invested in the survival of the warlock, but it will not intervene if the warlock dies additionally a warlock of the Collective Intelligence cannot be revived after death.

Your spellcasting ability is Intelligence rather than Charisma and you gain proficiency in Intelligence Saves instead of Charisma Saves.

(The Collective Intelligence, can be represented by a number of groups. Some examples of groups that could be used are Reddit, a Discord server, YouTube comments section, Twitch chat, 4chan, Twitter followers, Instagram followers, Facebook friends, Kakao, Weibo, any social media platform really, or other players at the table.)

Benefits of the Intelligence

Starting at 1st level, the Collective Intelligence grants you its ability to decipher all forms of communication, you can speak and read all languages.

Additionally you may choose one warlock skill to gain double proficiency bonus.

Reliable Predictions

The Collective Intelligence's ability to predict the outcome of events has a palpable influence on the world around you. When a creature with 30 feet that you see makes an attack roll, spell attack roll, any saving throw. You can use your reaction to give advantage or disadvantage to the roll, this must be used before seeing the outcome of the roll. This feature can be  used a number of times equal to 1 + proficiency per long rest.

Overmatching Intellect

Starting at 6th level, your bond with the Collective Intelligence manifest in the physical realm more strongly. You are resistant to psychic damage and you can add your Intelligence modifier to any psychic damage you deal.

Intellectual Shield

Starting at 10th level, your bond with the Collective Intelligence draws out your own intellect into the physical realm and bolsters it. You gain the benefits of half-cover at all times, as an action a spell slot can be expended to increase the benefit to three-quarters-cover for one minute.

Cognitive Shadow

The bond with the collective intelligence grows so strong that your Intellect fully manifest into the physical realm. You gain an invisible Cognitive Shadow, the Cognitive Shadow can act as you do for the casting of spells and use of class features, the Cognitive Shadow cannot be more than 60 feet from you. You gain blind-sense to the area within 10 feet of the Cognitive Shadow. As a bonus action you can extend the benefits of the Intellectual Shield class feature to a creature within 5 feet of the Cognitive Shadow. As an action you can expend a spell slot to swap position with your Cognitive Shadow.

The Cognitive Shadow has a flying speed of 30ft, it can pass through solid surfaces as if they were difficult terrain. It is invisible , it can be detected with the See Invisibility and Detect Thoughts spells. The Cognitive Shadow has an AC of 11, 2 times (10 + your intelligence modifier), and has a plus 2 to saving throws and shares your proficiency bonus for saves. It is resistant to all physical damage and psychic damage, any psychic damage dealt to the Cognitive Shadow is also dealt to you. If the Cognitive Shadow if reduced to zero hit points it disappears and will return after a long rest. If you are knocked unconscious the Cognitive Shadow will remain unchanged only fading if you die.

(At your digression you can give control of the cognitive shadow to the Collective Intelligence.)