No replacement for meditation mastery(mana regen) in new runes
I am a sona main, currently plat 1. If this mana regen is taken away it will ruin sona and other mana heavy supports. For reference it's 1.25% of your missing mana every 5 seconds, and the closest we have in the new runes is manaflow band. Manaflow band gives 10% of current missing mana every 60 seconds, and as far as I can tell you can not control it(so you can't use it when you want to, it will just sort of go off then you wait 60 seconds whether you wanted it then or not).
This is overall a lot less mana regen and a lot less reliable. If you run oom now, and you don't have mana flow coming up for another 40 seconds, guess what you're out of luck. In current form sona will frequently go oom because she needs to spam spells and they have a high mana cost... I don't see how after the update this sort of playstyle will be viable. I get that managing your mana is a "skill" but to me this makes the game a lot less fun and ruins my champ for me. I would like some sort of item or some sort of rune that we can take to get back the old mastery.