Corrupted Dryad

Innate Spellcasting. The dryad’s innate spellcasting ability is Charisma (spell save DC 14). The dryad can innately cast the following spells, requiring no material components:

At will: druidcraft

3/day each: entangle, goodberry, poison spray, 

1/day each: barkskin, pass without trace, shillelagh

The spell entangle may be used to grapple or strangle targets, and may grow thorns.

Magic Resistance. The dryad has advantage on saving throws against spells and other magical effects.

Speak with Beasts and Plants. The dryad can communicate with beasts and plants as if they shared a language.

Tree Stride. Once on her turn, the dryad can use 10 feet of her movement to step magically into one living tree within her reach and emerge from a second living tree within 60 feet of the first tree, appearing in an unoccupied space within 5 feet of the second tree. Both trees must be Large or bigger.

Claws. Melee Weapon Attack. +3 to hit, 1d4 slashing damage. On a failed constitution save (DC: 10), the black sap seeps into the flesh and does an aditional 1d6 necrotic damage.   

Thorn. Range weapon attack. +3 to hit, 1d6 piercing damage on a hit. On a failed constitution save (DC:10), take an aditional 1d4 necrotic damage. Every turn that the thorn is not removed from the flesh, make another constitution saving throw. 

Fey Fear. The dryad targets one humanoid or beast that she can see within 30 feet of her. If the target can see the dryad, it must succeed on a DC 14 Wisdom saving throw or be magically frightened. The frightened creature regards the dryad as a terrifying predator that must be avoided. The target will want to run away, or will have disadvantage attacking the dryad. 

The dryad can have no more than one humanoid and up to three beasts charmed at a time.