public void RemoveModifier(Modifier modifier)
 {
     _decoratedGraph.RemoveModifier(modifier);
     _statsWithoutModifiers.UnionWith(modifier.Stats
                                      .Where(s => StatGraphs.ContainsKey(s))
                                      .Where(s => StatGraphs[s].ModifierCount == 0));
 }
 public void RemoveModifier(Modifier modifier) => _decoratedGraph.RemoveModifier(modifier);