The Secret OP Strongest Comp of Patch 14.8

This is a standard fast 8 comp that duo carries Lillia and Ashe and duo tanks Annie and Nautilus. It's very flexible and can fit any frontline (Ornn + Azir + Udyr fit well, Sett + Illaoi fit as well, Sylas + Galio can even fit in a pinch). It also caps out very well with 5 costs (Azir, Hwei, Udyr, Sett, Lissandra).

Econ augments like Clear/Cluttered mind or Slammin' are great since they can get you to level 8 with a lot of gold, or even fast 9 if you're winstreaking.

This board (Kog'maw reroll without actually playing reroll) is the ideal opener. Cait can hold AD items, Kog can hold AP items, though be sure to hold an extra Kog'maw because he's hard to find on level 8 as the only 1-cost you need on the final board.