Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Night Dreamer Crest Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Night Dreamer Crest suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Similar Items
The 10 items nearest to Night Dreamer Crest (item level 50) in item level among Armor > Cloth, Head slot, from item level 39 to 60.
Blizzard numbers items as they are created, so the named items next to ID 139086 (139081 to 139091) were usually added in the same batch as Night Dreamer Crest: the same quest line, zone, vendor or reward set.