We've included two foils consisting of either two rares or a rare and a mythic rare, eight foil uncommons, nine foil commons each from the main Double Masters set, and two foil tokens (with a token on both sides)
6 - What Must Be Done What Must Be Done is an interesting board wipe
Whether a part of control, aggro, tempo, or combo decks, Brainstorm was an absolutely defining force in Vintage until its eventual restriction, and to this day, is clearly way, way over the line for Legacy, except that it just gets a pass, because we want it
Other High-Power Creatures The first thing Id start looking for with a Ryu deck is high-power creatures that you want to attack with, and luckily, Boros has no shortage of goodies in that department
Ramp Mox Diamond 8 Great burst and fixing as well as potential artifact synergy