Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Valorous Nightsong Trousers Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Valorous Nightsong Trousers suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Transmog Sets
Valorous Nightsong Trousers is part of the transmog set Valorous Nightsong Battlegear (Druid only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Valorous Nightsong Trousers Fits
Other Items Named Valorous Nightsong Trousers
1 other item in the current build is also called Valorous Nightsong Trousers. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Valorous Nightsong Trousers
Blizzard numbers items as they are created, so the named items next to ID 45353 (45348 to 45358) were usually added in the same batch as Valorous Nightsong Trousers: the same quest line, zone, vendor or reward set.