spitul vigor doesn't work
yup, we know. read the sticky
“Healing skill” always refers to the sixth slot skill only. This is not a bug.
If you could gain retaliation on any* heal, it would make the siphon on hit trait considerably OP. Like Morelia said, its meant just for use with the sixth slot skill only. That leads me to a quick question of if it works when you sacrifice the blood minion for HP or no?