Wondrous Item, very rare (requires attunement by a Requires Attunement by a Druid.)
While wearing this item, you can Wild Shape into a beast or monstrosity you have seen before, at double your Max. CR. You can stay in a beast or monstrosity shape for a number of hours equal to your druid level. All clothing except for the medallion vanish off the persons body like any normal Wild shape.
Notes: Requires Attunement by a Druid.