Ghost-Spider, Soul Stealer

Flying, deathtouch

Ghost-Spider, Soul Stealer's power and toughness
are each equal to the total number of Hero and
Villain creature cards in your graveyard.

Whenever Ghost-Spider enters the battlefield or
attacks, mill three cards. Put an instant or sorcery
card from among the milled cards into your hand.
If you can't, create a Clue token.