New tenacity item

As a guys who enjoy playing juggernauts and tanks i am tired of eating a chain of CC of % seconds . Practically every champ has a stun , knock-up , snare... or jumps. In my opinion there could be an item that gives you tenacity every time you are CCed .

I think this would be balanced because if an adc or an ap carry is stuned he is dead nearly every time. But the tanky guys who receive stun a lot of times each time it would be less useful , and maybe and only maybe we are going to be ble to move in a tf!