Blazing Battlemage, Flame Imp and the Voidwalker are the minions you're aiming for in the mulligan. Invalid Deck ID, Scarab Egg and Dragonblight Cultist are the solid follow-up minions.

The deck will play as a regular Zoo: go wide and fast. If that plan fails, you can try to win the board with random Galakrond Demons. Post-Gala Kronx Dragonhoof offers some interesting options for direct damage or board clear which regular Zoo doesn't have.