The Great Old One (but better)

Your patron is a mysterious entity whose nature is utterly foreign to the fabric of reality. It might come from the Far Realm, the space beyond reality, or it could be one of the elder gods known only in legends. Its motives are incomprehensible to mortals, and its knowledge so immense and ancient that even the greatest libraries pale in comparison to the vast secrets it holds. The Great Old One might be unaware of your existence or entirely indifferent to you, but the secrets you have learned allow you to draw your magic from it.

Eldritch Reach

Starting at 1st level, your alien knowledge gives you the ability to touch the minds of other creatures. You can telepathically speak to any creature you can see within 30 feet of you. You don't need to share a language with the creature for it to understand your telepathic utterances, but the creature must be able to understand at least one language.

Old One's Insight

You open your mind to your patron and allow them to see through your eyes. When you use this ability you are able to see the weakness' of your enemies. You learn what things your opponents are vulnerable to and what they resist.

Create Thrall

You shove your Patrons influence onto the targets mind. On a failed save the target is charmed by you until a remove curse is used on them (only a remove curse spell will work to remove this effect). They will listen to your word over anyone else's. On a Successful save the target is unaware of you doing this but in now on edge as they feel like something or someone is watching them, and have advantage on Wisdom saving throws relating to the mind for the next minute.

The Old One's Presence

You take power from your patron to gain certain aspects from them. For one minute your form shifts slightly based on whatever form your patron takes. The power from your patron flows through you enhancing everything you do. You can add your warlock level to any damage dice you roll for the duration of the ability, and you gain temporary hit points equal to your total level. When this ability is used roll a d20, on a natural 1 you are overwhelmed by the power you received and take 1d4 points of psychic damage for every turn you continue to use this ability. On a natural 20 you are able to use the power to the best of your abilities, on the next spell or attack you use you can choose to do maximum damage upon hitting the target (does not work with area of effect spells).