mtg the one card MTGNexus (By trashing this card after the placing turn My hands were literally shaking':

Additionally, some Post Malone fans are excited at the prospect of owning cards that feature Postys autograph

Unfortunately, at the time, Rosewater didnt give a concrete answer, instead turning the question back on the community

He emulated this approach with Lost Caverns and extended it into a celebration of several different kinds of Latin American cultures

The first 12 modular cards were introduced in Darksteel and Fifth Dawn back in 2004, with another 10 to follow in Modern Horizons and Modern Horizons 2

1 Thalia, Guardian of Thraben Sleeve from Secret Lair

For the first week of Standard, though, I dont think its needed