I have only used this deck 2 times so far, one losing by a misclick and the other a win, but so far the deck seems to be really powerful 
The deck: 
Also, add 3 Blistering Scorns to the deck, the database didn’t have the cards in the deckbuilder when creating this.
Card Choices:
Azure Horn Shaman: For giving minions higher health to make it easier to deal damage to them and for easier trades
Natural Selection: Because of Blistering Scorn and Spirit Harvester, I run no rebirth/egg minions in this deck. With the higher curve, this allows you to use Natural Selection much easier for removal (in some instances, this also helps prock Azure’s effect if you really need it)
Amplification: Self explanatory, dealing minature damage to our minions help procs this easier.
Artifact Hunter: Drawing twin fan easier, but I only had one. Can be replaced with other cards. You could use Grincher as an alternate draw in case you want a ranged or blast artifact (or any other good artifact), but its based on preference.
Silhouette Tracer: To hit face easier. 
Bounded Life Force: An alternate win condition to deal as much damage as possible to your opponent.
Sunsteel Defender: With Flash, you essentially get a free 4/3 minion for 2 mana at the expense of using 2 cards. Powerful for a turn 1 opening imo.
Sworn Sister L’Kian: For card draw. You can replace it with Sojurner, Blaze Hound, or Spell Jammer, but again its really based on preference.
Earth Sphere: Amazing card to help sustain your health, especially in the late game.
The rest of the cards are basically for damage synergy, such as Taygete and Khymera. While playing this deck, you want to have a twin fang ready and try to get as ahead on the board as possible. You want to use Flash, Scorn, Kujata, and Harvester to your advantage when you play Twin Fang to ensure that you get as much damage out as possible. Unlike Harvester, Scorn can be played right when you play Twin Fang to get instant value, so I suggest trying to play Harvester at least a turn earlier before equipping Twin fang (if you can). Also, positioning yourself with Twin Fang is key: be especially careful when you play Twin Fang against Faie, Four Winds Magi, and their equivalents. In those cases, you will have to rely more on Blistering Scorn to help deal burst damage with Twin Fang and rely more on either value, Khymera, or Bounded Life Force.
Problems this deck is mostly card draw, so you can try replacing some cards with Spell Jammer, Sojurner (both weak to Zen Rui), Blaze Hound (gives your opponent a card, but good stats), Ruby Rifter (could be great late-game, but I haven’t tried it) or Grincher (for clutch artifacts). Khymera can be replaced by any other great late-game options, like Red Synja or Dark Nemesis.
Again, I have only tried 2 battles with this deck in high 11/12 rank this season, and love to here your guys thoughts on this deck~
The one Khymera as an insurance policy is really cool as well, seems to have good answers to things and works well with the accelerated deploys off of flash and Kujata. Really like this, gonna have to give it a try myself!
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