Crazy balance idea, limit certain champs from certain items

How many time have we had a FANTISTIC item that we had to delete or ruin becuase broke it?

we now have runes that certain champs arn't allowed to use.

and now "bloodletters veil" gets removed from "nexus siege" because certain champ who already had ways to get out can use it to become completlyunstoppable? ( cough ) when other champs may have desperately needed it

so.. this made my think.

we don't need "range or melee only"

just exclude X champion from BUYING said item.

if the item works great with 99% of champions but completely breaks 2 champs.. DON'T LET THEM BUY IT.

now this is something that i except to be HIGHLY controversial, but i am interested in other people opinions. this would allow us to HAVE cool items that some champs might need, but without the worry that they by completely break other champions.

what do u guys think?

this woudl allow much more intricate balance and item design without having to worry about X champion buying the item because it would completely break them

and yeah, this would probably take a HUGE change to the coding of the game and might actually be impossible to do.. but if it is possible, how would u feel about it