Chilblains

Acquisition
Skill Quests: Skill Trainers: Signet of Capture:
 * Into the Unknown (Augury Rock)
 * Bartoch (Droknar's Forge)
 * Dakk (Ember Light Camp)
 * Craw Stonereap (Arborstone (Explorable))

Blood Magic

 * Strip Enchantment

Curses

 * Desecrate Enchantments
 * Lingering Curse (elite)
 * Rend Enchantments