Commander's Arsenal is a product in the Commander series that was released by Wizards of the Coast in November 2012. It was announced at the Magic panel at the San Diego Comic-Con on July 14, 2012.
Mark Rosewater stated that a new line of products was conceived for the Commander format because of the success of Commander. There will be a Commander product every year, and future products are likely to be complete decks. However due to the unexpected demand and related timing issues the 2012 set ended up being a less streamlined collection. "The best way to describe it is a treasure trove of Commander goodies", explained Rosewater.
Because of the out-of-order nature of the release, it was made a premium product with relatively limited print run. The massive (up to four time MSRP) price hikes applied by many stores as a result disappointed many players who had hoped for greater accessibility of some of those cards.