Circle of Mutation (Entrellia)

Corruption seeps into your ideas of wildlife, visions of creatures beyond the material plane haunt your very thoughts and dreams. Mutations of profound concepts and spawn unheard of, the Circle of Mutation harvests forms of unimaginable beasts that stretch the realms of madness and eldritch creation.

Combat Wild Shape

When you choose this circle at 2nd level, you gain the ability to use Wild Shape on your turn as a bonus action, rather than as an action.

Additionally, while you are transformed by Wild Shape, you can use a bonus action to expend one spell slot to regain 1d8 hit points per level of the spell slot expended.

Corrupt Creations

Also starting at 2nd level, your transformations are contorted and imperfect, causing gruesome appearances and hiccups in your forms. When you use your Wild Shape feature, your creature type becomes monstrosity or aberration for the duration (your choice) and the beast you transform into gains strange tendrils, eyes or other unpleasant cosmetic deformities in unnatural places. Creatures within 30 feet of you that can see or hear you when you Wild Shape must make a Wisdom saving throw against your spell DC or be frightened of you for 1 minute. Creatures can attempt the saving throw again at the end of their turns. On a success the condition ends, and they are immune to this effect for the next 24 hours.

Mutations

Additionally at 2nd level, when you use your Wild Shape feature, you choose a number of Mutations equal to your proficiency bonus to gain benefits during your transformation. These benefits last until your Wild Shape ends.

Toothy Maw. Beak and Bite attacks deal an additional 1d8 psychic damage. At 10th level, this damage increases to 2d8.

Boils. Creatures that start their turn within 5 feet of you must make a Constitution saving throw against your spell casting DC or take poison damage equal to your Wisdom modifier. At 10th level, the range is increased to 15 feet.

Inverted Knees. Your movement speed is increased by 15 feet and your jumping distance is doubled. At 10th level, Pounce, Gore and Charge attacks deal an additional damage die.

Waterlogged Lungs. If your form does not have a swim speed or the ability to breathe water, it gains 30 feet of swim speed and the amphibious trait. If your form does have swim speed, it grows limbs and gains 30 feet of movement speed and the amphibious trait. 

Eye Stalks. As an action, you can cast one of your Druid Cantrips without requiring verbal, somatic or material components. You can do this a number of times equal to your Wisdom modifier.

Layered Flesh. Your hit point maximum is increased by your level. At 10th level, this is increased to twice your level.

Bone Carapace. Your AC is increased by 2. At 10th level, this increases to 3.

Ethereal Visage. You have advantage on stealth checks. At 10th level, you have advantage on saving throws against magic.

Void Ridden Vocals. You gain the ability to speak Deep Speech and Abyssal, however this does not fulfil the verbal components for spell casting and is merely for communication. At 10th level, you gain the ability to speak Common and can communicate telepathically with creatures that you can see within 30 feet of you. The creature must share a language with you for them to understand.

Squirming Tentacles. You sprout tentacles. As a bonus action, you can attempt to grapple a target within 10 feet of you. The escape DC is equal to your spell casting DC. Until this grapple ends, you can't use this on another target. At 10th level, you can grapple up to 2 targets.

Nightmare Fuel

At 6th level, your shape bending adapts into more horrific forms, assuming the nightmarish bodies of Monstrosities and Aberrations. You do not need to have previously seen any of these forms, since they come to you as nightmares or intrusive visions from the beyond. Your Druid level determines the creatures you can transform into, as shown in the Nightmare Fuel table below.

Druid Level | Nightmare Fuel
6th | Death Dog, Worg
8th | Adult Kruthik, Ettercap, Grick
12th | Hook Horror, Owlbear, Peryton
16th | Girallon, Manticore

Aberrant Strikes

Also at 6th level, your attacks while transformed by Wild Shape count as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.

Tortured Mind

At 10th level, your terrors are woven to your defenses. You gain resistance to psychic damage, which also carries over to your Wild Shape forms.

A Twisted Thought

At 14th level, you manifest a horror unthought of from the depths of your darkest visions. You can expend 2 uses of Wild Shape at the same time to transform into an Aberration or Monstrosity of your choice with a CR rating of 6 or lower and must have an Intelligence score of 9 or lower. This form can only benefit from a maximum of 2 Mutation options; however, you can expend a spell slot of 2nd level or higher to gain an additional Mutation, up to a maximum of 4.

Mandatory level 3 feature to post class

Druid homebrew requires a level 3 feature to be published, please ignore.