Sacred Harm property is the extra harm which is diminished by the Decrease Harm property; however not by the Defensive layer.
Sacred Harm, in fact, expands the harm of Fundamental Assaults, Dynamic Aptitudes, Crits, Counter-assaults and Harm After some time Harms.
1% Sacred Harm = 0.7% extra harm.
In this manner, the measure of harm Blessed Harm gives you depends on the Saint’s Assault detail. The Assault detail can be expanded by Quality’s, Pets, in-fight buffs and so on.