Bound cards can be traded if added to an item

[prism 2]

Is there any way to fix this? If an item is bound using script or something like @itembound, it cannot be traded. However, if a bound card is put in an item the item can be still be traded. If the card is untradeable in itemdb it can't be traded even if the card is in a weapon. Is there a way to make bound items work this way?

[Angelmelody 221]

Impossible imo, for  example  if  there is a weapon that with 2  bound cards , one card is bound to char and another is

 

bound to guild ,Can you tell  me how the weapon work? so its kinda hard to figure card sets  which was bound to

[Dastgir 1246]

AFAIK, Cards are not meant to be rented/bounded.