Oscar, The Grouch

Oscar, The Grouch's power and toughness are
each equal to the number of creatures you
control that are Fungi and/or Saprolings.
At the beginning of your end step, create X 1/1
black Fungus creature tokens with "This creature
can't block," where X is the number of times you descended this turn. (You descend each time a permanent card is put into your graveyard from
anywhere.)
"SCRAM!"