Hearthpwn

Baboen your "problem" with Azure Drake is very understandable.  Azure Drake isn't really meant to be played on curve and I should have mentioned that. You keep playing tempo plays till you run out of cards, then play Azure Drake to keep the cards coming essentially. Azure shines in that he is a card to be played later than turn 5, however at the minimum he can get played turn 5 if needed.

A frequent turn 5 play for example is Tuskarr Totemic and Hero power with the intent to play an extremely cheap Thing from Below with other cards on turn 6. This frequently leads to a diminished hand, and so Azure Drake plus two mana card on Turn 7 helps further the aggression while strengthening the next turns to come.

After some testing 2 Master of Evolution seems weaker than 1 Fireguard Destroyer and 1 Master of Evolution as you said.

However, please keep the single copy of Master of Evolution. When it swings games it occasionally swings hard and the non overload plus acceptable 4 drop stats are helpful. Playing Master of Evolution on Thing from Below after a trade for example will give a 7 drop at full health, swinging games by itself. it is somewhat of a winmore card, however, a winmore card that is at worst a Chillwind Yeti is a welcome addition to the deck.

I agree with you, I have been trying my changes and went back and forward going back to your deck.

The problem I had with Azure Drake is that sometimes I just didn't play it on curve because I had stronger options. But at the same time, It's great to bait removal and it does cycle a card. Master of Evolution just didn't work for me yet,often I have no heal target and end up playing it on a totem.  It is good value though for the mana cost.

The fact I like Fireguard Destroyer is because the overload doesn't matter so much, I don't need to play Doomhammer or Bloodlust on curve usually. So I felt turn 4 is fine for overloads, since Flamewreathed is there as well. It might be good though to have a non overload card on turn 4 as alternative. 

I do really like Flamewreathed. Even when it's removed, it's still a threat the opponent has to reserve something for and might hurt them later on.

I've been trying to make something like this as well. I don't like traditional Aggro shaman nor the Totem midrange shaman.

Why Azure Drake? There is only one spell that benefits from spell power (Lightning Storm). I can see it being useful to cycle cards to get to Bloodlust, but is it worth it? Currently using one Fireguard Destroyer instead of a Drake.

I played this deck a few games and it's pretty strong indeed. Nice aggresive hybrid.