You can only perform this ritual within Veilguard. It automatically fails if attempted on the material plane.
You conjure the following resources: 3 each of Ashbloom, Frostcreeper, Witherroot, and Shivering Crow, and 5 Tzacanthe.
A character can only perform or participate in the performance of this ritual once per event.
Vadesh and his Heralds may become more interested in your affairs after you perform this ritual, for good or ill.