There\’s several possible variants to this deck.
The general idea is that you have a treasure deck that allows for lots of mana availability, but you need card draw. For a concise solution you can simply add The Reality Chip, Jace, Mordenkainen and 4x Overflowing Insight. Once you bring blue in the mix, consider also to bring Suspicious Stowaway or Futurist Operative for reliable Goldvein Pick damage delivery.

Or you can make use of the quirky and delightfully useful Dockside Chef and his cousin, the Skullport Merchant. With those options we also venture in sacrifice-deck-territory. Interesting interactions with Mask of Griselbrand can be had.

The below is a description of the youtube video that I linked. The youtube video has a slightly *DIFFERENT* deck – due to my lack of cards. it follows the general idea, though. The yt video also has a more in-depth description of what is going on and what thought lurk behind the machinations of said deck. Battle is against a pesky lifegain deck that drew Hallowed Priest thrice early, with Impassioned Orator and Kor Celebrant – so a tough situation.