In the Appearances collection, Resurgent Phantom Bindings is listed as Boss Drop. Appearance ID: 10124. No other item uses this appearance, so it is unique to Resurgent Phantom Bindings.
Read from the World of Warcraft client build files.
Where Resurgent Phantom Bindings Comes From
Resurgent Phantom Bindings Drops From
The in-game Adventure Guide lists Resurgent Phantom Bindings in the loot of 2 encounters.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Resurgent Phantom Bindings Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Resurgent Phantom Bindings suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Transmog Sets
Resurgent Phantom Bindings is part of the transmog set Heroes' Regalia of Faith (Priest only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 39390 (39385 to 39395) were usually added in the same batch as Resurgent Phantom Bindings: the same quest line, zone, vendor or reward set.