Start the game by playing something like 2 Darkflight and 2 Cavalier. Finding a copy of Rengar during the very first minion rounds is the ideal case but a copy of Aphelios is also a good early item holder option. Level up to 4 at stage 2-1.
For your mid game, you can throw in anything that will add to your synergies (e.g. Lee Sin for Tempest, Nunu for more Cavalier). Level up to 6 at stage 3-2.