Terranosaurus

{3}{g}{g}: Monstrosity 1 (If this permanent isn't
monstrous, put a +1/+1 counters on it and it becomes monstrous.)
Terranosaurus's power and toughness are each
equal to the number of lands you control. As
long as it is monstrous, its power and toughness
are each equal to the number of lands you
control plus the number of celestial lands you
control.