The priestess never had a covenant forced upon her. Such binds would generally weaken those on the higher rank and even impact their growth. But that doesn't mean that the lineage she belongs to doesn't possess similar restrictions.
Currently in her body, for daring to harm the Radiant Knight, her blood rumbled, causing her body to break apart in places. It's just a warning, but she can feel her strength waning.
But the moment she felt as such, one of her Frosty undead experienced the same destruction and started to crack.
This undead cold Domain, or Dark Frost Domain was her ultimate card, something that made her virtually immortal as long as the Domain was active, while actively draining the vitality of all those that stayed inside and once they fell, they too would be claimed by the Domain, becoming part of The Cold Corpses army.
Making her a force to be reckoned with.
