MoonSong
Rules-lawyering drama queen but not a munchkin
Well, for metamagic I have this idea that was inspired by the old reverse spells and the way enhance ability works (plus how spell scaling works). Basically metamagic is built-in in the spells, as variants withing the spell, some variants require higher slot levels, some might even reduce the slot level (By increasing casting time, or components, or reducing duration, scope or levels). Then sorcerers would be able to freely use the different variants just by knowing the spell while prepared casters would have to treat each variant as its own spell. So, wizards would need to learn and prepare "quickened fireball" while sorcerers would be able to do it just by knowing fireball and having a sufficiently high slot.