Dolmen Stone is a Druid Unique Amulet that makes Boulders rotate around you while Hurricane is active. Like all Unique items they provide a powerful effect that can't be found on any other item. These effects can't be moved around like Legendary Aspects resulting in limited flexibility when incorporating them into your build.
How to Obtain - Random Drop
Rarity - Rare
Dolmen Stone Mechanics
Many Unique items change the way skills and builds work in significant ways.
You can have multiple Boulders rotating around you while Hurricane is active.
For further information, see our Build Guides & Unique Item Wiki
Dolmen Stone