Dominaria United Draft Boosters contain:

• 1 Rare or mythic rare that can be a legendary creature and/or showcase stained-glass, borderless, or Phyrexian-language card
• 1 Rare or uncommon legendary creature with an opportunity to get the showcase stained-glass, borderless, or Phyrexian-language treatment
• 1 Basic land, which can have the showcase stained-glass treatment
• 1 Basic land or non-foil common, or an opportunity for many other cards, including a traditional foil that could be rare or mythic rare, showcase, borderless, or Phyrexian
• 2 Nonlegendary uncommons
• 9 Commons