As this is obviously a theorycraft deck, I'll just say: 

• at least 6 out of the 8 murmys are placeholders, to complete the quest.
• The deck consists out of cards with strong deathrattles/a lot of effects, to make the best use of the new heropower. Since there are many neutral mechs with strong deathrattles, it's mostly them.
• There is a small Thaurissan->Garrison Commander, Desert Obelisk, Heropower, Heropower -Combo included. While I think Garrison Commander might fit well into this value orientied deck, Thaurissan probably won't fit, since the deck is mostly cheap.