Witch Patron

Source: Hexbound

Witches need a mentor to teach them witchcraft. Warlocks need a patron to grant them their powers. As a Witch Patron warlock, your mentor and your patron are one and the same. An incredibly powerful witch taught you witchcraft, and through your covenant they also became both your mentor and your patron. Your magic stems both from the summoning of spirits and from your mentor themselves. You are able to tap into your patron’s immense source of magic, so long as they agree with your actions.
Under the watchful eye of your familiar, your patron sees your every move. Whether this is to protect you from harm or to ensure you carry on their evil deeds depends on the mentor and patron you chose. Your training under an immensely powerful witch has taught you the importance and strength that lies in belonging to a coven; a powerful coterie of magic users that enhance each other’s magical abilities. You know that there’s strength in numbers, and with both your coven and your familiar at your side, there’s little in this plane or any other that can oppose you.

Witchmark

Witch Warlocks have the most diversity in their witchmarks, since they depend solely on their patron and mentor. Some noble witch mentors use their family’s coat of arms as their witchmark, while other patron mentors choose a witchmark in the shape of a ring around the finger of their pupil to illustrate their bond. The most common motif is chains snaking around the body of the pupil symbolizing the unbreakable covenant between the patron mentor and the student.

Final Familiar

You call on the spirits from beyond the veil and on your own witch patron to greatly empower your familiar in battle.
As an action, you empower your familiar. The powers granted to your familiar stay for a number of minutes equal to your Charisma modifier, with a minimum of one. While this ability is active:

• Your familiar grows one size larger.
• Your familiar’s speed increases by 10 feet. If the familiar is able to fly or possesses another way of movement such as swimming or burrowing, it is also increased by 10 feet.
• Your familiar’s HP becomes equal to your max HP.
• Your familiar’s Charisma modifier is equal to your Charisma modifier.
• Your familiar can attack on its initiative turn, as well as taking other actions, bonus actions, and reactions as normal.
• On its turn, your familiar can cast any cantrip you know. When casting any cantrip, it acts as if you cast it when it comes to character levels. Additionally, any eldritch invocations that empower or otherwise affect this cantrip for you also affect the cantrip cast by your familiar.