C++ rule of five for class that has dynamic memory

So I'm writing the big five for a class that has dynamic int array

struct intSet {
  int *data;
  int size;
  int capacity;

  intSet();
  ~intSet();
  intSet(const intSet& is);
  intSet(intSet &&is);
  intSet &operator=(const intSet& is);
  intSet &operator=(intSet &&is);
}

What I got so far:

intSet::intSet(const intSet& is){
  this->size=is.size;
  this->capacity=is.capacity;
  this->data=is.data;
}

intSet::intSet(intSet &&is){
  this->size=is.size;
  this->capacity=is.capacity;
  this->data=is.data;
  is.data=nullptr;
}

intSet& intSet::operator=(const intSet& is){
  if(&is!=this){
    size=is.size;
    capacity=is.capacity;
    delete [] data;
    data=is.data;
    data=new int[capacity];
    for(int i=0;i<size;i++){
      data[i]=is.data[i];
    }  
  }
  return *this;
}

intSet& intSet::operator=(intSet &&is){
  if(&is!=this){
    size=is.size;
    capacity=is.size;
    delete [] data;
    data=is.data;
    is.data=nullptr;
  }
  return *this;
}

intSet::~intSet(){
  delete [] this->data;
}

Clearly there's something wrong with it but I am not really familiar with the big five...I searched a lot but still did not find out the answer...