@Override
	public boolean invoke(MOB mob, Vector commands, Physical givenTarget, boolean auto, int asLevel)
	{
		final MOB target=getTarget(mob,commands,givenTarget);
		if(target==null) return false;

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

		boolean success=proficiencyCheck(mob,0,auto);
		if(success)
		{
			final CMMsg msg=CMClass.getMsg(mob,target,this,verbalCastCode(mob,target,auto),auto?_("A shimmering absorbing field appears around <T-NAMESELF>."):_("^S<S-NAME> invoke(s) a shimmering absorbing field of weakness around <T-NAMESELF>.^?"));
			if(mob.location().okMessage(mob,msg))
			{
				mob.location().send(mob,msg);
				if(msg.value()<=0)
					success=maliciousAffect(mob,target,asLevel,0,-1);
			}
		}
		else
			maliciousFizzle(mob,target,_("<S-NAME> attempt(s) to invoke weakness to acid, but fail(s)."));

		return success;
	}