Attach to a hero.

Action: Exhaust The Arkenstone and raise your threat by X to lower by X the cost of the next ally you play this phase that matches the attached hero's sphere.

"...the Heart of the Mountain; and it is also the heart of Thorin. He values it above a rive of gold." –Bilbo, The Hobbit

Attach to Bilbo Baggins.

Attached hero gets +1 and +1 hit point.

"Mr. Baggins!" he cried. "Here is the first payment of your reward! Cast off your old coat and put on this!" – Thorin, The Hobbit

Attach to a hero. Restricted.

Attached hero gets +2 .

Response: After attached hero attacks and destroys an enemy, deal 1 damage to another enemy engaged with you.

Royal indeed did Thorin look, clad in a coat of gold–plated rings, with a silver hafted axe... –The Hobbit

Attach to a hero. Restricted.

Attached hero gains Ranged.

When making a ranged attack, attached hero gets +2 .

Thorin seized a bow of horn and shot an arrow at the speaker. –The Hobbit

Attach to a hero.

Action: Add Thror's Golden Cup to the victory display to draw 3 cards.

...the great golden cup of Thror, two–handed, hammered and carven with birds and flowers whose eyes and petals were of jewels... –The Hobbit