Inside, you'll get six Ikoria: Lair of Behemoths boosters . . . plus, a random stamped rare or mythic rare card as your Prerelease foil that could be any rare or mythic rare in the set! You also receive 2 additional boosters with your preorder.
Then, of course, you'll get a couple other goodies—like a spindown life counter to keep track of your life total.