@Override
	public int castingQuality(MOB mob, Physical target)
	{
		if(mob!=null)
		{
			if(mob.fetchEffect(this.ID())!=null)
				return Ability.QUALITY_INDIFFERENT;

			final Room R=mob.location();
			if(R!=null)
				for(int r=0;r<R.numInhabitants();r++)
				{
					final MOB M=R.fetchInhabitant(r);
					if((M!=null)&&(M!=mob)&&(CMLib.flags().isHidden(M)))
						return super.castingQuality(mob, target,Ability.QUALITY_BENEFICIAL_SELF);
				}
		}
		return super.castingQuality(mob,target);
	}