Aarde, Warden of the Vale

Trample, reach
When you cast Aarde, Warden of the Vale you
may pay X, if you do, he enters the battlefield
with X +1/+1 counters on him.
{2}{g}{g}, {t}: Target land you control becomes an
X/X elemental creature, it's still a land. X is
equal to the number of +1/+1 counters on
Aarde, Warden of the Vale.