I watched a few pros playing Cassiopea to see if I could learn something...
I've been messing around with Cass looking for a new/unique build path that works as I feel Rylies isn't as good anymore. No matter what I did, I'm just not feeling like I've mastered this champ and that this is the build path I like and works for me. Trust me when I say you can create your own build path that works for you. I've done it with other champs, it just not working with Cass.
So I watched a few pros play her. I learned nothing. There wasn't anything they did that I haven't tried or done before.
What I saw was that a few pros snowballed once or twice, not all the time. But I can't help but feel like those are the reasons for the Cassiopea nerfs.
Now I'm not saying my build path is the best, or Cass needs some buffs, all I'm saying is that what you see happening in the pro games doesn't always happen in regular games. If someone snowballs in pro, doesn't mean its always happening.
It doesn't mean you need to balance the game based on the pros.