Blood Crystal

Blood Crystals are attuned to a practitioner of the arcane arts. The crystal’s magic infuses itself with the person it is bound to in such a way that every spell cast leaves a signature specific to it’s owner. So, if a person bound to a Blood Crystal casts a spell, it can always be tracked right back to them. Needless to say, anyone bound to a Blood Crystal rigidly uses only the allowed applications of arcane magic, so as not to be tracked down and punished for any misdeed.

Blood Crystal

City Campaign Benjiboy