private void PopulateDescriptor(Skill skill, SkillLevel level, XmlDocument document, bool applyToTarget)
        {
            var suffix = applyToTarget ? "_Target" : "";
            var xpath  = $"Datatable/SimulationDescriptor[@Name='{level.GetIdentifier(skill)}{suffix}']";
            var node   = document.SelectSingleNode(xpath);

            if (node == null)
            {
                return;
            }
            level.Descriptors.Add(new SkillDescriptor
            {
                Modifiers       = CreateModifiers(node),
                AppliesToTarget = applyToTarget
            });
        }