You will receive two promo packs.

The first promo pack, from Yugi's Legendary Decks, contains the following cards:

Slifer the Sky Dragon (Ultra Rare)

Obelisk the Tormentor (Ultra Rare)

The Winged Dragon of Ra (Ultra Rare)

Electromagnetic Turtle (Secret Rare)

Dark Renewal (Secret Rare)

Black Illusion (Secret Rare)

Glory of the King's Hand (Ultra Rare)

Set Sail for the Kingdom (Ultra Rare)

Duelist Kingdom (Ultra Rare)

The second promo pack, from Legendary Decks II, contains the following cards:

Eternal Soul (Secret Rare)

Dark Burning Magic (Secret Rare)

Dark Burning Attack (Secret Rare)

Both packs will still be sealed in their original packaging.