Wild Companion (Optional)
At 2nd level, you gain the ability to summon a spirit that assumes an animal form: as an action, you can expend a use of your Wild Shape feature to cast the Find Familiar spell, without material components.
When you cast the spell in this way, the familiar is a fey instead of a beast, and the familiar disappears after a number of hours equal to half your druid level.

Cantrip Versatility (Optional)
Whenever you reach a level in this class that grants the Ability Score Improvement feature, you can replace one cantrip you learned from this class's Spellcasting feature with another cantrip from the druid spell list.

Beast Spells
Beginning at 18th level, you can cast many of your druid spells in any shape you assume using Wild Shape. You can perform the somatic and verbal components of a druid spell while in a beast shape, but you aren't able to provide material components.

Archdruid
At 20th level, you can use your Wild Shape an unlimited number of times.
Additionally, you can ignore the verbal and somatic components of your druid spells, as well as any material components that lack a cost and aren't consumed by a spell. You gain this benefit in both your normal shape and your beast shape from Wild Shape.

Natural Recovery
Starting at 2nd level, you can regain some of your magical energy by sitting in meditation and communing with nature. During a short rest, you choose expended spell slots to recover. The spell slots can have a combined level that is equal to or less than half your druid level (rounded up), and none of the slots can be 6th level or higher. You can't use this feature again until you finish a long rest.
For example, when you are a 4th-level druid, you can recover up to two levels worth of spell slots. You can recover either a 2nd-level slot or two 1st-level slots.

Nature's Sanctuary
When you reach 14th level, creatures of the natural world sense your connection to nature and become hesitant to attack you. When a beast or plant creature attacks you, that creature must make a Wisdom saving throw against your druid spell save DC. On a failed save, the creature must choose a different target, or the attack automatically misses. On a successful save, the creature is immune to this effect for 24 hours.
The creature is aware of this effect before it makes its attack against you.

Thousand Forms
By 14th level, you have learned to use magic to alter your physical form in more subtle ways. You can cast the Alter Self spell at will.

Fungal Body
At 14th level, the fungal spores in your body alter you: you can't be blinded, deafened, frightened, or poisoned, and any critical hit against you counts as a normal hit instead, unless you're incapacitated.