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.
I need some way to more reliably play my 8 copies of 6-cost cards. Amber Acolyte is slow, Power Stone doesn't impact the board and "skips" turn 3 when I have plenty of good 3s, Initiate of the Sands would be great but its weak to a lot of commonly played cards. Duskwalker ramps straight to 6 and is a good body on its own.
Duskwalker is an interesting addition. It seems to me having Banish or In Cold Blood in that slot would be better. I definitely like the surprise turn on of Xenan Obelisk, however.