@Override
	public boolean invoke(MOB mob, Vector commands, Physical givenTarget, boolean auto, int asLevel)
	{
		final Physical target=getTarget(mob,mob.location(),givenTarget,commands,Wearable.FILTER_ANY);
		if(target==null)
		{
			return false;
		}
		if((!(target instanceof Weapon))
		||(((Weapon)target).weaponClassification()!=Weapon.CLASS_SWORD)
		||(((((Item)target).material()&RawMaterial.MATERIAL_MASK)!=RawMaterial.MATERIAL_METAL)
			&&((((Item)target).material()&RawMaterial.MATERIAL_MASK)!=RawMaterial.MATERIAL_MITHRIL)))
		{
			mob.tell(_("This magic only affects metal swords."));
			return false;
		}

		if(!super.invoke(mob,commands,givenTarget,auto,asLevel))
			return false;

		final boolean success=proficiencyCheck(mob,0,auto);
		if(success)
		{
			final CMMsg msg=CMClass.getMsg(mob,target,this,verbalCastCode(mob,target,auto),auto?_("^S<T-NAME> erupts into flame!"):_("^S<S-NAME> invoke(s) a writhing flame around <T-NAMESELF>!^?"));
			if(mob.location().okMessage(mob,msg))
			{
				mob.location().send(mob,msg);
				beneficialAffect(mob,target,asLevel,0);
				mob.location().recoverRoomStats(); // attempt to handle followers
			}
		}
		else
			beneficialWordsFizzle(mob,mob.location(),_("<S-NAME> attempt(s) to invoke a flame, but cause(s) a puff of smoke."));

		return success;
	}