Circle of The Trees

Druids of the circle of trees are slowly becoming more plant than flesh, slowly losing thier humanity and becoming one with nature

Barkskin

Your connection to trees and plants begins to harden your skin into a resilient bark.

While not wearing armour your AC is equal to 10 + constitution modifier + Wisdom modifier. This also applies in your Wild Shape

Photosynthesis

You no longer need to eat, sleep or drink. Instead you must spend 4 hours a day rooted in the earth.

if you are unable to root yourself into the earth, you take a point of exhaustion.

in addition, as your roots sink into the ground with each step, you cannot be shoved, or dragged against your will, and rolls made to move you against your will are made at disadvantage.

Guardian of The Forest

your Bark Skin hardens even further, as your body becomes more plant than flesh. You have Resistance to Bludgeoning, Piercing and Slashing damage from nonmagical weapons,

however, you have vulnerability to fire damage.

additionally, as a action, you can use 2 uses of Forest Shape to transform into a Treant.

however you cannot use the treant’s animate trees ability,

Forest Shape

Your wild shape ability now includes plants and creatures of the Plant type

when transforming into plant type creatures, CR limits still apply

when transforming into plants such as shrubs, trees, etc. the maximum height/length you can grow to is equal to five times your druid level.

in addition, you can transform into a plant or animal with a CR of 0 without expending a use of your Wild Shape, and you know the Commune with Nature spell and can cast it as a ritual.

Language of Nature

At Third level, your connection to the natural world transcends language. you learn the spells Speak with Animals, and Speak with Plants. in addition you cain the following spells at the listed levels. Once you gain access to one of these spell, you always have it prepared, and it doesn’t count against the number of spells you can prepare each day. If you gain access to a spell that doesn’t appear on the druid spell list, the spell is nonetheless a druid spell for you

DRUID LEVEL	SPELLS
3rd	beast bond,  animal friendship
5th	locate animal or plant, beast sense
7th	dominate beast, plant growth
9th	commune with nature.