Not exactly revolutionary but it got me to Masters for the first time.
Only running 3 of each of the namesake cards was initially a "I am shiftstone poor" choice, but as I learned the deck I realised it might actually just be correct. Having 13 cards that cost 4+ is not really where I want to be in an aggro deck, and I would ideally cut Soulfire Drake if there were a better choice at 4.
The ShiftstonedEternal Power Calculator is a deck-building tool that visualizes your odds of drawing enough Influence and Power based specifically on the cards found in your deck.