[Boron]

this spell looks interesting . i would like to know how the check is made if the damage is transfered or not .
the spell description is extremely vague there .

does it work like a mr-savethrow attack like soul slay or do you get better boni and perhaps it is :
mr + 2d6 oe of caster vs mr + 2d6 oe of target ?

furthermore do you get higher odds when casting it with a powerful blood mage ? a doom horror has a built in blood vengeance of +2 so perhaps that is possible for normal cast blood vengeance too ?