Goal of the deck
Your objective is pretty simple: swarm the board with your annoying sticky huge minions. Most minions in the deck have Taunt and something else that makes them hard to kill (like Evasive and Reborn).
For this, you will be using 2 things: the Strength in Numbers sidequest and the mana cheat from Forest Warden Omu (that can even be combined to generate even crazier boards). If you have Omu and another minion in hand you can insta-complete the sidequest, dumping 3 big minions in one turn.
As a Druid, you should focus on trying to get your ramp, that consists of Breath of Dreams and Overgrowth, as soon as you can. If possible, also mulligan for either a Dragon (for Breath of Dreams synergy) or your sidequest.