Hatecrest Naga Scale

Source
This item drops from the following naga in Feralas:
 * Hatecrest Myrmidon
 * Hatecrest Screamer
 * Hatecrest Siren
 * Lord Shalzaru
 * Hatecrest Warrior
 * Lady Szallah
 * Hatecrest Serpent Guard
 * Hatecrest Wave Rider
 * Hatecrest Sorceress

As a quest objective
This item is an objective of Against the Hatecrest.