Rivals of Ixalan
Rivals of Ixalan is the latest small expansion containing 196 cards (5 basic lands, 70 common, 60 uncommon, 48 rare, and 13 mythic rare).
Some of the rares are Double-faced cards which were printed on a separate print sheet. Nine additional cards are found in the set's planeswalker decks (2 mythic planeswalkers, 2 rares, 2 uncommons, 2 commons, and 1 common dual land). These are numbered #197/196 to #205/196. With the exception of the Elder Dinosaur cycle, all the tribes are staying in their same colors from Ixalan.
Trivia: As the design of this set fell between the abandonment of the Two-Block Paradigm, but before the introduction Three-and-One Model, Rivals of Ixalan had a combined Vision/Set Design team instead of separate Design and Development teams but notably, head designer Mark Rosewater wasn't part of the team.