Grinding card advantage with sites, smugglers, and fate cards.
I mulligan for 3 colors of influence, 3+ power, and something to play on turn 2 or 3.
For the first smuggler, I almost always take either Stonescar Banner or Howling Peak.
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.