Elementalist Lux (Ultimate Skin) small change?

It has a bad.. You can only be changed 2 times in one game..Why not have a reset button and puts Light (base form) again, depending on the user like DJ Sona You can change it whenever you want. And changes in the forms to be capped for each five minutes is better than using spell to enemy champion and sorry for the english I'm not so good, but you understand what i meaning