Writhing Focus

Acquisition

 * Core
 * The Battle Isles
 * Zaishen Chest


 * Factions
 * Ritualists


 * Nightfall
 * Ritualists


 * Eye of the North
 * Depths of Tyria
 * Cathedral of Flames
 * Ash Phantom


 * Ritualists

Drop research is ongoing and can be found here.

Dye
Dye affects the wrapping around the item's handle. The default color can be closely replicated using brown dye.