OD: Ghastly Demise, Instant B Destroy target nonblack creature if its toughness is less than or equal to the number of cards in your graveyard.

Ghastly Demise

Destroy target nonblack creature if its toughness is less than or equal to the number of cards in your graveyard.

10/4/2004 This card is not in the graveyard until after you destroy the creature. So it does not count itself when determining the maximum toughness.