Ivern, The Green Father

{g}{g}{g} Create a 0/1 bush with defender
{t}{g}{g}{g} tap target creature you control, gain
life equal to its toughness.
whenever Ivern, The Green Father attacks or is
tapped, create a 5/5 stone golem with trample.
"Oooooooo, a Featherback catterpillar!"