YGO Speed Duel Starter Decks - Rules of Play says:

The Speed Duel Starter Decks each contain 3 ready-to-duel Speed Duel Decks and 3 Ultra Rare variant cards specially chosen to boost each strategy. Speed Duel Starter Decks: Destiny Masters contains Decks for the Millennium Item users Yami Yugi, Ishizu Ishtar and Maximillion Pegasus to face off against up-and-comers from Speed Duel Starter Decks: Duelists of Tomorrow containing Decks for Seto Kaiba, Mai Valentine and Joey Wheeler.