The king that is a werewolf wont be reated to him or something right. Possible if his family lost their power, and the king is a family member but was turned by another to regain the power. Or even an old enemy of his family which is more likely. Time will tell
Guessing this being is actually one of the celestials. Although mentioned at the end of MDS it never went into detail about the decendant. Maybe he will receive a quest to find out more regarding the Dem family. Like Quinn did in MVS.
More info is given! We already knew that Gary was descended from Jack in MDS but to find out that a broken vow made in the past took away their Werewolf powers is unbelievable!! Wonder what kind of vow Gary will make? Itching to find out more!!
that would explain why jack never lost control on a full moon. it took him years to realize he was a wolf bc of that. i imagine he is the one who broke the vow since he didnt have any prior knowledge werewolves
so theory: the system ray had the quinn has, and Gary uses is all the same, and quinn and gary are just related to vampires and werewolves respectively