First picked Interloper over Triumphant Return and it worked out.
One loss was due to playing very loosely vs. an aggressive skycrag Dragons deck. If I had saved Combust and not sacced a unit to Burglar early, I could have saved about 9 damage.
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.