The card's name actually reads "Drowsee". The card is to be played as if its name reads "Drowzee" as it should be. Had the card been ruled "play as printed", one would be able to play four of these cards as well as four correctly-spelled Drowzee cards (currently only in the Unlimited format), the set's Hypno card would only be able to evolve from this card, and all other Hypno cards would be unable to evolve from this card.