Issac had only been asked for the answers, not to explain the nuances of how a witch's magic worked when creating such chains between families. He had been asked specific How, Who and What. He needed to find out how the magic had been formed before he could see who the issue might have come from.
"A bond like this can only match the communications level of the people it affects. You fight, that portion of the bond dampens." The voice answered, layering on top of Issac's own speech of the words. The bond had not been made with the demand and stress such things tended to be made with. It had been honourable, sought by the Phoenix-line and not by the Fae in an attempt to keep the pet forever.