Condition in will

Can a will have a such a clause that "if anyone challenges my will in court of law then as he/she has gone against my wish so he/she will be debarred from getting any asset which I have bequeathed as per the will or shall not have any right in my property" I think its not a valid clause as one can not take away anyone's right to appeal and moving forward if challenged and court find the will to be fake then the whole will is strucked down only then there will be no effect of such a clause. Kindly provide opinion on the same.