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.
Hey friend, SST was there to stop aerial attacks and to enable Friendly Wisp, you can replace him for siege braker but Mask is kinda hard to replace has its ultimate ability is what granted this deck its final way to win. Plus the lifeforce was essential to it. Although, i wouldn't advise you to play this deck has it is no longer updated. Several cards need replacement and i dont believe its worth spending Shiftstones on it.