Vandar Kaun, Wrath of Wilds

Trample
Vandar Kaun, Wrath of Wilds costs {1} less to
cast for each Forest you control.
{4}{g}{g}, {t}: Put a +1/+1 counter on Vandar
Kaun, then it fights target creature you don't
control. If that creature would die this turn, put
+1/+1 counters on Vandar Kaun equal to the
amount of generic mana in its mana cost.