Ideas for changes to summoner spells

Hello everyone I hope someone reads this because I'm going to give my ideas on buffs and other things that can be done to some of the summoner spells in League. I also hope some people will give their ideas on changes to some summoner spells as well.

First I believe barrier needs a bit of a buff because functionally it is weak compared to spells like flash, heal and even exhaust in terms of viability.. So I believe that a buff for it could be that it gives the champion some sort of cc immunity or spell shield, or something along those lines. Another idea I had for it was that it could be combined with cleanse, which is not seen much or at all in League now, this could give both some needed utility and would be a good pick against teams with high cc or just a good pick for some champs like Vayne and Tryndamere to name a few. Those are my ideas for barrier I'd like to see if anyone else has any other ideas for it or sees problems with mine.

Second there is the summoner spell clarity that I have one idea for. I feel like clarity should keep its original effect of giving mana to the whole team but it could also maybe give increased regen in both health and mana for a time as well. I don't quite know what could be the amount of regen that is given, but maybe make it so that clarity is kind of like a super health and mana pot in as a general idea.

That is all of my opinions I hope some other people share their ideas too for some of the weaker summoner spells just so there will be a variety of spells to pick instead of the couple five that people actually use. :)