Vanguard Headdress

Dropped by 4

• Sir Zeliek level 63 1% 2000094
• Scarlet Warder level 54 0% 9447
• Shadowforge Peasant level 54 0% 8896
• Twilight Keeper Havunth level 60 0% 11804

Dropped by, from a shared table 40+

• Arcane Chimaerok level 62 12801
• Blackhand Elite level 61 10317
• Carrion Spinner level 61 15975
• Commander Randolph level 61 13139
• Death Talon Overseer level 62 12461
• Death Talon Wyrmguard level 63 12460
• Death Talon Wyrmkin level 61 12465
• Deathknight Captain level 61 16145
• Disrupted Arcane Elemental level 63 61949
• Duskfang Creeper level 63 61935
• Firelord level 62 11668
• Firewalker level 62 11666
• Flameguard level 62 11667
• Gurubashi Berserker level 62 11352
• High Speaker Jam?wahli level 62 63100
• Ima'ghaol, Herald of Desolation level 63 62606
• Infernal Destroyer level 63 62017
• Infinite Rift-Lord level 62 65105
• Lava Annihilator level 62 11665
• Lava Elemental level 62 12076
• Lava Surger level 62 12101
• Lord Xanvarak level 63 61609
• Mana Stalker level 62 61354
• Obsidian Destroyer level 61 15338
• Onyxian Warder level 62 12129
• Plagued Ghoul level 61 16447
• Qiraji Gladiator level 61 15324
• Qiraji Slayer level 61 15250
• Rage Talon Fire Tongue level 61 10372
• Relentless Felguard level 62 61351
• Scalebane Royal Guard level 62 1050
• Shadowbane Alpha level 63 61191
• Skitterweb Venomfang level 62 61208
• Speaker Gan'hota level 63 61361
• Spectral Worker level 62 61934
• Thuzadin Necromancer level 61 10400
• Twilight Overlord level 61 15213
• Vyral the Vile level 61 15202
• Warbringer Overseer level 63 62019
• Warlord Hanzento level 63 61360

Only the first 40 are listed.