Hearthpwn

Budget Options
Forgo Archmage Vargoth and put in another Wrath to save additional dust, he is not a core part of the deck but most people have him, since he was once free, as well as Lesser Jasper Spellstone, Innervate, Swipe, Feral Rage, Naturalize or the missing Wrath in exchange of Anubisath Defenders since it won't have the biggest impact. Lastly, if you absolutely most save dust then put Rising Winds in instead of Branching Paths.

Playstyle
Complete your quest as fast as possible be floating mana, even spend The Coin just to get it done one turn faster, if you don't have a better play with it in hand. Afterwards draw through the deck as fast as possible til it's empty and get max value from Jade Idol. Try to save your Choose One cards until after you have completed your quest. 

Zul'Drak Ritualist is extremely nice with Spreading Plague, when you draw one try to wait for Spreading Plague and 10 mana to play them together as a combo, or when your opponent has a full or nearly full board. I find Zul'Drak Ritualist to be better then Hecklebot and Ironwood Golem since i can use it to mess with big priest' res pool and i don't like pulling The Lich Kings from my opponents deck, as well as it has better stats.

Mulligan
Generally try to get/save these cards in this order:  Untapped Potential, Oaken Summons, Jade Blossom, Wrath[/card, ], [card]Ferocious Howl,  Lesser Jasper Spellstone(if included) and lastly Nourish, which is best to keep when going first, because then you most likely will be slower to complete your quest and lines up good on turn 6 because you can float the 2 extra mana that ramp and complete the quest then, this most likely happens if u have a good turn 4 ( e.g. Oaken Summons)- or turn 3 ( e.g. Jade Blossom) card and don't get to float mana on those turn. Generally never keep Archmage Vargoth or Zul'Drak Ritualist, or other high mana cards

I didn't include Wardruid Loti and Flobbidinous Floop in favor of saving dust and to include the Oaken Summons, Archmage Vargoth and Zul'Drak Ritualist package(which is more or less unusable with Flob), since it observably have higher winrate and is cheaper, though it does take up more deck space, therefore i encourage you to experience with it yourself. Other options for this deck include: Kun the Forgotten King or Cenarius.