Riot Bring Back Mana Potions but Put a Restriction on Them to Prevent Spell Spamming
Like...you can only carry one or two at a time?
Even one would be good. There won't be much spamming going on if you can only have one mana pot. A lot of mages have been crippled early game solely because of this decision and this isn't even taking into consideration other cough masteries cough changes.