This is an extensive renaming of sets to their correct names. "Duel
Decks" and "Not Standard Legal" have been merged into a "Supplemental"
set type. MTGO-only sets have been put into their own set type, just
like magiccards.info. Supplemental sets now have a "block" which is the
block that they have under magiccards.info, for easier organization. The
deck builder on the client now relies on an autogenerated list instead
of a hardcoded one.
