Crystalline Flask + 4 Pots
Kassadin, Fizz (off the top of my head), and a few others all take this start. Flask, four pots. I love this start, except for the fourth pot. You wait around until about 1:32 and get an extra pot, which is another 150hp. Basically, Flask/Three pots is totally fine, Flask/Four pots feels frustrating to play against. My suggestion? Make Crystalline flask 10g more.
If Riot intends for the 4 pot start, then maybe make it 10g cheaper? Although that would be pretty frustrating having every flask champion start with four additional pots.