morgana mid is the bane of my existence as a Lux main. and any champion really.
even AD assasin's aren't the best into her as she WANTS to build both Zhonya's/Rod of Ages ANYWAY.
morg just presses W, throws out a Q. whether it hits or not doesn't even matter.
then she walks away and repeats. once she gets rod of ages, a decently stacked tear, or a chalice the lane phase is basically over for you and you can do nothing but farm under tower if the morg is smart.
the only upside to this is that Morgana has VERY little kill pressure, and way less impact on the game than most mids. BUT she will prevent you from hard carrying most of the time. in solo Q if you know you are duoing with good teammates, just play morg mid. if are against a morg mid you better your team doesn't feed like monsters early because you are going to be meh at best for awhile. you will be farmed and she will be, but you need so much to deal with her endless wave clear so she doesn't roam.
You need raw mana, mana regen, and sustain as she will harass you with Q's and hit one occasionally. even if you can dodge all the Q's and don't need sustain the amount of raw mana and mana regen you need is absolutely disgusting.
morgana mid is legit cancer and is a champion that requires no skill to play in that role.