Summoner spell suggestion

Anyone experienced with league knows what summoner spells to take when. If I'm top I probably have flash/teleport, if I'm mid I have ignite/flash, jungles get smite/flash and marksman have heal/flash and other spells don't see much use except in extreme situations such as a certain zed player needing cleanse but it's clear that riot is pushing for diversity in choice as two years ago most games had ignite/flash on anyone who wasn't a jungler so I have a suggestion for a new summoner spell that I think would open up a lot of options and I would like to hear yours as well so feel free to comment below xD

Aura - Creates a minimal spell shield on self absorbing magical damage and disables until broken or up to four seconds.

The idea of the spell would not be to absorb damage for you like a barrier but to give a fighting chance in matchups such as veigar vs akali where your being slaughtered by cc. It would need to be just large enough to not be instantly wiped by burn effects or minor aoe i.e. brand passive, or malz E. I think this spell would give a lot of diversity as you could see it on an adc who doesn't want to be wrecked by leona or a mid lane who wants to be able to get a spell off against annie or even a top who is terrified of getting ganked by sejuani ults.