Band of the Exorcist

The Band of the Exorcist is a melee ring that boosts stamina, critical strike rating, hit rating, attack power, and resilience.

Source
This item is sold by special vendors that take Spirit Shards. Players can use the Shards to buy items from:
 * Spirit Sage Zran in the Allerian Stronghold
 * Spirit Sage Gartok in Stonebreaker Hold

It costs to buy this item.