Crown of the Old Oak

Requires attunement.
At first glance, this crown looks like a simple
tangle of small blackened oak branches. It is
legend that an ancient Druid was blessed with a
crown from the forest god, Sylvanus, that granted
the Druid protection from the beasts that roamed
her forest and command of the forest plants.
You know the Druidcraft cantrip.
You have resistance to non-magical piercing
damage. Once per day, you can cast the Entangle
or the Plant Growth spell as an action.