This item is acquired in-game. See its sources below.
An Uncommon Shield, item level 13, requires level 10, binds when picked up.
First seen in build 12.0.7.68887 (Midnight (patch 12.0.7)).
Appearance ID: 17640. 2 other items wear the same appearance:
Read from the World of Warcraft client build files.
In their in-game specialization descriptions, these specs name shields among their preferred weapons:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Impervious Bulwark uses icon file 618984, which 16 other items also use. The 8 closest by item ID:
Sutiru's Shield ID 216577 · Armor - Shield · item level 13Shield of the Devourer ID 216579 · Armor - Shield · item level 13Skyrider's Shield ID 216580 · Armor - Shield · item level 13Impervious Carapace ID 144140 · Armor - Shield · item level 39Shield of Blind Hate ID 144103 · Armor - Shield · item level 39Rockworm Carapace Shield ID 119390 · Armor - Shield · item level 44Carapace Shield of the Devourer ID 112110 · Armor - Shield · item level 40Sutiru's Brazen Bulwark ID 90575 · Armor - Shield · item level 39Blizzard numbers items as they are created, so the named items next to ID 216578 (216573 to 216583) were usually added in the same batch as Impervious Bulwark: the same quest line, zone, vendor or reward set.
Spiritsage's Barrier ID 216573 · Armor - Shield · item level 13Flamecaller's Bulwark ID 216574 · Armor - Shield · item level 13Darkhide Shield ID 216575 · Armor - Shield · item level 13Wasteland Deflector ID 216576 · Armor - Shield · item level 13Sutiru's Shield ID 216577 · Armor - Shield · item level 13Shield of the Devourer ID 216579 · Armor - Shield · item level 13Skyrider's Shield ID 216580 · Armor - Shield · item level 13
Deflector of the Protectorate ID 216581 · Armor - Shield · item level 13Bulwark of the Protectorate ID 216582 · Armor - Shield · item level 13Shield of the Protectorate ID 216583 · Armor - Shield · item level 13The raw ItemSparse values for item 216578 in the current client build.
Read from the World of Warcraft client build files: Item, ItemSparse, Lock, Holidays, AreaTable and CollectableSourceVendor.
TheWoWDB