Removal of mana potions

You want to remove mana potions? Fine, but don't just leave champions that don't use mana unnerfed. If you want to nerf the ones who use mana for their abilities then don't nerf them to freaking uselessness against the ones who use energy or nothing at all and just have cooldowns. Why don't you make cooldowns for characters who don't use mana longer so that it would be somewhere equal because if you use mana and the one you oppose in the lane doesn't then you have to go back to the base every few spells while they just keep farming which in other words means you lost the lane. Why don't you make everybody use mana, then it would be equal and balanced unlike this crap. Now you auto lose the lane because you use mana and they don't. This is a nerf to every mana using champion while everyone else just gets a free lane farm for a bunch of minutes while the refillable potion can only get you, after you bought it for an amount of 500 gold (which will be reached after 10-15 minutes of the game), a pitiful amount of 50 mana which can't be used for even one spell on certain champions.

Why didn't you nerf the ones who don't use mana, Riot?