tank class update

So.. the next class update... tanks. I understood that riot want to make tanks durable, hard to kill but with less DMG. I agree and I have an ideea. A new concept of items, made special for tanks. Items that decrease AD for example "it feeds of the champion damage" and gives armor, or MR, or DMG reduction. He don't have anything like this in the game and I am sure that it will be an interesting mechanic.