Can we get some mana sustain back for early-lane on Mages?

Can we get a second rune similar to manaflowband that helps out in the early game for certain mages, like ahri? I'm using Q 3 times and i successfully lost 70% of my manabar, i'm able to make my enemy use 2pots and that's it, after that my mana is so bad that i'm the one that get's pushed in and has to last hit under tower. this has gotten really frustrating i think that midlane when it comes to laning phase is in a really bad spot. I'm not talking about buffing mages or smth, buffing manaflowband or our mana sustain in the early game, has legit no outcome in the mid/late game against other champions, it only means that at least we can fight again for our lane and advantages. right now i can not do that, and it's annoying. I think the goal you tried to archieve with "more fighting" has not been archieved at all i think the opposite happened