These borderless cards are available in non-foil and traditional foil in Play Boosters and Collector Boosters
The bad news: this deck is still mediocre unless you have on-theme rares and top uncommons
My deckbuilding process would look like this: Starting with the gold cards in my collection, I feel Kunoros, Hound of Athreos is the strongest card, complemented by the full set of Temple of Silence and the access to quality lifelink creatures in both colors
1 is an unplayable card that is an ad, token, art card, or helper card
I brought that into what became widely regarded as one of UOLs most fun, best-run leagues
The early stages of designing a Universes Beyond set design is about looking for where the set wants to go and seeing what mechanical themes emerge from very top-down cards