This comp looks to use 6 Sorcerers to have high burst quick into the round. Riven provides great frontline with her shield, while Fizz nukes the backline with his ability.
Go for this comp if you find yourself with lots of magic damage items like Rods and Tears. The comp can utilize Mech to transition, so if you find an early Fizz, that will also be a good indicator to try this comp.
Level up on 2 if you are strong and want to start a win streak. Level up to 5 after carousel on 4 if you want to continue your win streak.
If you are lose streaking up to round 7, you can level up to 5 if you don't think you can beat the creeps.
Level up to 6 if you are on a win streak during Round 2 or level up to 5 if you haven't yet.
Win streak or lose streak, you should normally catch up to level 6 on Round 2. Roll a small amount if you are very weak and need to stabilize.
Before the fight on Round 1, level up to 7 and roll down if necessary.
7 After raptors, level to 8 if you haven't already and roll down to complete your team.
In the early game, 2 sorcerers and 2 frontline will be good for this comp.
The midgame you will want to have a strong frontline with Sorcerers until you find Riven. At level 7, you can also run Mech Pilots over Vanguards depending on what you find.
Don't funnel too hard into only Sorcerers when you play this comp. Look for good units to transition with like early frontline or Mech for the midgame. Your final comp should be transitioned into when you hit your late game units.
Use Fizz to snipe backline carries by repositioning him to the opponents you believe you will face.
If you find lots of extra Tears, you can alternatively run Janna over Fizz to boost up Xerath, or you can run them both at level 9.
Mana items like Blue Buff of Spear of Shojin will be great on Viktor, but if you high roll an early Janna, you can also put mana items on her instead.