Lhurgoyf Queen

Lhurgoyf Queen's power and toughness are each
equal to the number of cards in all graveyards.
Whenever another creature dies, or a creature
card is put into a graveyard from anywhere other
than the battlefield for the first time each turn,
create a green Lhurgoyf creature token with
"This creature's power is equal to the number of creature cards in all graveyards and its toughness
is equal to that number plus 1."