History of Warlock Bond

A Warlock Bond is the Warlock class item, a piece of class armor worn in the class item slot, the same slot used by Hunter cloaks and Titan marks.

Destinypedia's category lists 42 Warlock bond pages across Destiny and Destiny 2. Bone Circlet is one example: a Legendary Warlock Bond from Crota's End, earned as a raid reward or from a chest in the raid, with a Defense rating of 140 and no listed perks.