Cultist's Fervor

Acquisition
Signet of Capture:
 * Kyril Oathwarden (Morostav Trail)
 * Cultist Milthuran (Rhea's Crater)
 * Cultist Rajazan (Unwaking Waters (Explorable))

Bug!

 * Even if you have more than 12 blood magic, this spell will still make you sacrifice 18% of your total health. I had 18 blood magic (superior rune + awaken the blood), 520 total health, and was sacrificing 93 health (18%, not 12%) each spell.

Related articles

 * Enchantment spell skills quick reference
 * Modify energy cost skills quick reference
 * Sacrifice skills quick reference