Equip Your Hero, Prepare to Fight! Throw open the armories and turn up the forge, and rally your allies from near and far. Bring all your skill, luck, and your damn best gear to bear; as you’re 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 favourite classes.