Control your opponent while ramping, with no worry of drawing an expensive payoff early. Then market one of the big bombs to win once you've ground them down.
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.
This is a nice approach. I think, that merchants are too much :) Maybe cut 4 merchants (-2 pearl, -1 Hidden, -1 Ebon), swap baby Vara with 9 cost Justice relic and add 4 baby Varas in maindeck?