This comp runs 6 Vanguards along with Neeko as the main DPS carry. Fabled units are added in to buff Yuumi as well as add more utility to the team.
Go for this comp if you find a Chosen Vanguard. You can also run the 4 Vanguard 4 Mystic version if you find a Chosen Fabled or a Chosen Mystic.
Level up to 4 early if you want to start a win streak. Level up to 5 to try and continue the streak.
If you're weak in the early game, you can opt to save gold and lose streak instead.
At Round 2, level up to 6 regardless of your start. Put together the strongest team you can.
At Round 1, level up to 7. Roll down to stabilize your comp if you are weak. Afterward, save up to hit level 8 and complete your comp.
For the early game, you can use just about any backline, but Vanguards will be best for your frontline. Mages are nice as they can hold Neeko items until you find her.
Continue adding in more Vanguards and decide whether you want to go for 8 Vanguards or 4 Vanguard 4 Mystic.
If you find a Chosen Fabled unit, you will need to drop Cho'Gath to fit in another Vanguard. If you find a Chosen Mystic, you can drop a Vanguard for a Mystic in order to have 4 Vanguard 4 Mystic. You can also fit 4/4 with a Chosen Fabled unit as well.