Unpopular summoner spells should be buffed

Flash is the most used one Ignite heal and exhaust are about the same Tele is under These spells are always useful and at no point of the game are they useless Ghost is subjective to meta champs as only few can really get a lot out of it (think Susan) These are the ones we see everyday Cleanse is another situational one that could be polished Clarity and Clairvoyance are different because they have very little impact on summoners rift (personally I think ARAM makes clarity viable early) Barrier isnt used as much anymore because heal is almost 100% better since the heal is lower than the shield but it also heals an ally What do I propose?

Cleanse could become waaaay more viable if it could work on getting rid of the suppresion abilities but not negate the damage

Clairvoyance could have waaay more of an impact if it gave vision for a minute in a slightly smaller radius and be on a cool down similar to ignite 4ish mins, this would open the gates for midlaners who have an execute or enough sustain damage, who dont need ignite, to take this utility summoner and help the team (think Xerath, Lux, swain)

Clarity is just...awefull. As many people learn to control their mana more and more such a spell is unnecesarry unless you are new and just spaming spells left and right...I cannot think of a good buff for it but perhaps giving lets say 10-20% CDR for a minute may make it more appealing to a lot of casters

Barrier just needs to be a perma shield that doesnt dissapear after time (think Runic Blessing) and should have a decent amount less time of CD to match the positives of heal

Diversity is something that makes the game more fun And with recent actions, it seems RIOT is trying to make it so that S5 is not a tank meta, they are trying to get some variety back I think summoner spells are important and should all have some form of impact Thoughts?