Darksteel is the second set in the Mirrodin block. It is the 31st Magic: The Gathering expansion and was released on February 6, 2004
Darksteel was the first small expansion to have 165 cards (11 extra rares and 11 extra uncommons compared to previous small expansions). The expansion symbol for the set is a miniature version of the Shield of Kaldra.[6] The set continues the heavy artifact theme of its predecessor Mirrodin. Thematically the main component are darksteel artifacts, all of which are indestructible. The set also features an update of the lucky charms