Rookie is the only rank where losing doesn't affect your ability to rank up
Being able to fulfil two rolls at once, both of which highly desirable in control, scaling well into the late game and being instant make it a versatile all rounder not unlike Absorb or Azirious Charm
Its really popular, even just to help bring your creatures back, but also if you care about sacrificing or similar, too
Unfinity , however, was released in black border with two types of cards in the set: cards that have the acorn symbol are considered casual cards (exactly as if they were a silver-bordered card), and those that dont have the acorn symbol arent, and can be played in sanctioned/competitive formats like Commander, Pauper, Legacy and so on
It will show random cards to you
Dorian and Jared put me 100% at ease right away