Between May 27 and May 25, select stores will host pre-release events featuring Build & Battle boxes, so those who cant snag anything at the official website, can try again
Some collectors report pulling only one SAR card per box on average, if at all
Equip Artifact - Equipment Warrior's Sword Job select (When this Equipment enters, create a 1/1 colorless Hero creature token, then attach this to it.) Equipped creature gets +3/+2 and is a Warrior in addition to its other types
Prize Cards Promotional cards awarded as prizes (such as Sneak Peek Promotional Cards or YuGiOh
Special Summon from your Extra Deck, 1 "K9" Xyz Monster with a different name, by using that monster you control (this is treated as an Xyz Summon, transfer its materials to the Summoned monster)