Introduction
We'll see here a very very strong composition, that can top quite high, but that has its drawbacks. Let's see about it in more detail.
Late-game comp (lvl 9)
This comp gets at its strongest at lvl 9, but you'll want to stabilize at lvl 8. Depending on what you get first, either put Xerath or Morgana. The sooner will give your team more HP, while the latter is able to give you champions if she manages to kill units with her spell, thus either giving you units you could use, or bonus gold to roll for more upgrades or get back to 50g and push to lvl 9.
Major advantages and drawbacks
On the one hand, this line-up activates 8 non-unique traits, thus granting your team 600 HP with Tahm Kench's Arcana bonus, 1 000 if you manage to get an Arcana Emblem. This makes your whole team really bulky, and Preserver will heal your team by 3% of their max Health every 3 seconds.
On the other hand, it's a very expensive comp, meaning you'll need a solid economy to pull it off. Also, both the comp and its units are quite popular, so it's very likely that you'll be contested. Be sure to scout at several moments of the game to see who might contest you.
Good econ augments to pick when playing this comp
Almost all these augments give you gold to allow you to reach lvl 8 and 9 as fast as possible, but it's better if you only take one of them, as too many economy augments will make you weaker than players who will have augments boosting their board.
Augments like AFK, Risky Moves or Spoils of War are to be considered if you have a very strong board early on to be able to play on a winning streak. Otherwise, you'll want to play on a losing streak to have priority on carrousels.
Good board and items augments for this comp
These augments will give nice power-ups to your team, either by giving them stat boosts or items. You might also consider Pandora's Items if you were given too many components of the same category.