Throw open the armories and turn up the forge, and rally your allies from near and far. Bring all your skill, luck, and your best gear to bear; as youre plunged headfirst into the Crucible of War. Crucible of War is a supplementary booster set that introduces powerful weapons and equipment, and opens up new strategies and deck building options for all your favorite classes. A Crucible of War booster box, also known as a booster display, contains 24 booster packs with 10 cards each.