Coven Conclave

Source: Hexbound

There are spirits that rule over nature, protecting the wilderness from outside threats. They are stewards of forests, deserts, snow-capped mountains, and all things that fall under the domain of nature, and their power is immeasurable. Like all spirits, though, the power they can exert upon the world of the living is limited. In order to enact their will upon the material world, these spirits lend their power to very unique witches to make them strong enough to safeguard the spirits’ domains. These witches are called guardian rangers.
Guardian rangers use the spirits that preside over nature as a source for their power and magic. The nature spirits guide them, emboldening their strikes and granting them abilities that no other witch has access to. The most powerful guardians can even briefly summon these incredibly powerful nature spirits to assist them in battle, making them an immeasurable threat to whoever dares oppose the will of the wild.
It is said that when the most powerful guardian rangers die, their own spirits transform into nature spirits — granting their powers to younger, more inexperienced ranger witches, perpetuating the cycle, and protecting the domain of nature across generations.

Witchmark

A guardian ranger’s witchmark changes based on which guardian the ranger has formed a connection with. A devotee of the Tree-Horned Stag will traditionally have a witchmark in the shape of a tree on their forehead, while a devotee of the Snake of Many Faces will sport a witchmark in the shape of scales along their arms and legs, or a jewel in their forehead. As for devotees of the Six-Legged Wolf, their witchmarks often take the form of fangs at the corners of their mouth.

Chosen of the Spirits

At 7th level, your bond with the nature spirits strengthens, the powers they give you growing in turn. You can choose the same nature spirit you selected at 3rd level or a different one, provided you’ve spent at least one long rest in its domain.

• Tree-Horned Stag: The Tree-Horned Stag gifts you its magic to aid you in your journey. Choose any cantrip from the cleric or druid spell list. You are now able to cast this cantrip at will. Wisdom is your spellcasting ability for this cantrip. Additionally, you know one extra spell of your choice from the ranger spell list.
• Snake of Many Faces: The scales of the Snake of Many Faces shield you not only from physical blows, but from magic. When you are subjected to an effect that allows you to make a Strength or Dexterity saving throw to take only half damage, you instead take no damage when you succeed on the roll.
• Six-Legged Wolf: The Six-Legged Wolf teaches you its ways of hunting in a group. You have advantage on a weapon attack roll against a creature if at least one of your allies is within 5 feet of the creature and the ally isn’t incapacitated.