Start the game by playing something like 3 Lagoon and 2 Bruiser with Malphite and Jax in the front and Taliyah and Kai'Sa in the back. Make Kai'Sa hold items for Nomsy and Jax hold your tank items for Rakan and Idas. Level to 4 at stage 2-1/2-3.
Try to activate Shimmerscale 3 as well as making Kai'Sa your Dragonmancer Hero - since she's the perfect item holder for such a heavy crit-itemization. If you find a copy of Nomsy, simply get rid of Lagoon by taking out Kai'Sa + Taliyah. Level to 6 at stage 3-2.