Serpentskin Helm

Dropped by 3

• Akubar the Seer level 54 1% 8298
• Clutchmother Zavas level 54 1% 6582
• Incendosaur level 49 0% 9318

Dropped by, from a shared table 40+

• Barkskin Den Watcher level 62 61346
• Barkskin Ursa level 62 61342
• Barkskin Windtalker level 62 61347
• Blackhand Iron Guard level 61 10319
• Champion Irondeep Raider level 60 13545
• Commander Andreon level 61 91919
• Disrupted Arcane Elemental level 63 61949
• Dragonmaw Mindslave level 61 61889
• Duskfang Creeper level 63 61935
• Elder Growlheart level 62 61348
• Forgotten Echo level 61 62607
• Hakkari Priest level 60 11830
• Infinite Rift-Lord level 62 65105
• Lord Xanvarak level 63 61609
• Manascale Whelp level 60 59988
• Obsidian Eradicator level 60 15262
• Phantom Guardsman level 61 61200
• Ravenous Strigoi level 61 91910
• Relentless Felguard level 62 61351
• Relentless Temptress level 61 61350
• Risen Construct level 61 10488
• Risen Protector level 60 10487
• Runic Construct level 61 60596
• Sanctum Dreamer level 62 60742
• Shadeflayer Goliath level 61 61533
• Shadeflayer Troll level 61 61367
• Shadowbane Alpha level 63 61191
• Skitterweb Crawler level 60 61206
• Skitterweb Venomfang level 62 61208
• Son of Hakkar level 60 11357
• Speaker Gan'hota level 63 61361
• Spectral Teacher level 61 10500
• Spectral Tutor level 60 10498
• Spectral Worker level 62 61934
• Temporal Dust level 61 61317
• Venom Belcher level 61 10417
• Veteran Warrior level 60 13337
• Warlord Hanzento level 63 61360
• Withermaw Shaman level 62 62871
• Xalthix level 61 61565

Only the first 40 are listed.

Found in 4

• Solid Chest 0.3% 153454
• Arena Treasure Chest 0.3% 179697
• Solid Chest 0.3% 153451
• Solid Chest 0.3% 153453

Contained in 4

• Greater Darkmoon Prize level 2 1.4% 19296
• Outrider War Package level 1 1% 50181
• Sentinel War Package level 1 1% 50180
• Mithril Lockbox level 2 0.4% 5758