Probably the easiest card to add is Revel in Riches , an enchantment which will provide you with an untapped Treasure token each time one of your opponents' creatures dies, and then win you the game if you have ten Treasures at the beginning of your upkeep.
After that, we have to make some more difficult decisions and look at cards that might be less harmonious with the new theme and replace them with essential suite cards
Then we get that triggered ability: whenever Sorrow's Path becomes tapped for any reason , it deals 2 damage to you and all your creatures
If you look to crack packs for the slickest pulls and the highest percentage of sweet showcase cards, then go with collector boosters, otherwise, have fun with play boosters
Orzhov has a bunch of excellent ways to make token creatures such as Bitterblossom and Call the Coppercoats, and giving them vigilance and lifelink is fantastic in Commander