Hearthpwn

UPDATE: As the quest is actually all about playing your spells on your minions I added Shirvallah, the Tiger × 1. There is a possible 43 mana to spend on spells in this deck. It can be more because Sound the Bells has echo. Will definitely give this a try once it is available.

Mulligan & Strategy:

You need to mulligan for Echoing Ooze and Dragon Egg and any 1 mana cost spells. One of the strongest plays is Echoing Ooze, coin, Divine Strength on turn two. It gives you 2 2/4 minions which are hard to deal with early on. From there on you can keep buffing them.

I try to go for: turn 1: dragon egg, turn 2 quest + Blessing of Might   / Divine Strength   / Adaptation  . You will notice that a dragon egg on turn 1 is 99 times out of a 100 left alone and opponent will not bother to deal with it.

If possible protect your big minions with stealth or "cannot be targeted by spells or hero powers" from adaption. Also giving them divine shield at least is a good protection. 

Combo's:

- The Voraxx is really strong with Potion of Heroism  (it draws 2 cards) Spikeridged Steed   or Blessing of Kings 

- Eydis Darkbane, is best with the 1 mana spells, or with Sound the Bells!  because of the echo effect.

- Sound the Bells!  is so strong in this deck. Play it 3 times on turn 6 and most of the times you completed your quest. Always play this spell more than once. It will each time buff Lynessa Sunsorrow  too.

Screenshots:

 

How about 4 Echoing Oozes with Spikeridged Steed?

 

 

 

2x 9/6 windfuries?