When the token battle is exiled, it stops existing, so you can't actually cast the back face." Which is TRUE
Amonkhet is also a secondary setting during major story events like War of the Spark and March of the Machine
In game 3 of the first match of Grixis Dragons, I only won because my opponent fetched a Battle land without the basics for it to enter the battlefield untapped, thus leaving himself a mana short to cast Tasigur, the Golden Fang and a removal spell at the games critical juncture
So this being sorcery speed outside of blink decks does tend to limit it slightly, but even then its a powerful option to include
Swiftspears aforementioned downshift to common is certainly part of it, but beyond that, haste is a powerful keyword that makes Monastery Swiftspear among the best aggressive one-drops of all time for red decks
As I've mentioned, every other preorder for the upcoming MTG Spider-Man crossover is sold out at the time of writing