Added double-sided explorers of ixalan tokens: https://deckbox.org/editions/520-extras-explorers-of-ixalan
Added double-sided game night tokens: https://deckbox.org/editions/519-extras-game-night
Fixed modern event deck tokens to be double-sided: https://deckbox.org/editions/308-extras-modern-event-deck-2014

Many thanks to meldon44 for the detailed information provided on these missing tokens!

Thank you, sir! This allowed me to get the Precon CSVs for those products finalized. :)