Summoner spells need a rework

So let's be honest, there are a fair few summoner spells that simply do not fit within the meta and could use some love and considering that summoner spells are being removed rather than added or rebalanced these days I fear for the how variable summoner spells will be in the future. Basically however useful they are when used creatively, taking summoner spells such as clairvoyance, clarity, cleanse and ghost are less than useful than the obvious flash pick, along with your choice of exhaust, heal, teleport and ignite (aswell as barrier occasionally). These summoner spells should be reworked from being circumstantial at best into something substantially more viable as well as fun to use in game. Note that my ideas may not fit best into the game in terms of balance, but I'd rather the idea got out there that changes are needed over how valuable my own suggestions are and would appreciate discussion. Clairvoyance: Firstly why not change clairvoyance into a pseudo Twisted Fate ult in which you can spy on hidden enemies across the map (whether or not it reveals stealth is another matter). Since a trinket has all but replaced it already this is the one that I'd say is the most in need of rework.

Clarity: Since it's main usefulness comes in the form of having the ability to cast spells more often than your opponent whilst in the laning phase and becomes significantly less useful once mana regen items have been purchased or you are donated a blue buff, why not improve upon it's main function of allowing you to cast more often by giving a temporary cooldown reduction buff to the user (and perhaps bonus mana regen) for a reasonable time, turning it into a short lived but impactful blue buff.

Cleanse: This is a tough one since it allows you to get out of sticky situations but is only truly useful if you have flash ready or be a particularly mobile champion to escape whatever caused you cc in the first place. It is however incredibly circumstantial, only being useful against incredibly cc focused teams and in 99% of cases, heal is still favored for it's early game usefulness aswell as it's movement speed buff. Since it's quite odd that Heal gives a movement speed bonus to begin with, perhaps the spells should be merged so instead of a movement speed bonus, it gives the only the caster the cleanse affect along with the heal. (the ability still heals allies but whether it's fair to still give an ally the movement speed bonus aswell is up to balancing). This is probably broken but cleanse needs something done to it.

Ghost: Ghost is weird but giving it an upgrade in the boots enchantments helped it a lot, but not nearly enough to be favored over the other mobility spell flash and is only occasionally chosen on champs such as Olaf, Tryndamere, Fiora, Master Yi and Singed. The ability to pass through units is especially useful on these characters however it's utility is limited to chasing and running. So improving combat stats such as improved armour and magic resist would be a massive improvement to the spell.

Any comments would be appreciated.