Swamp Thing, Eternal Protector

You may cast Swamp Thing, Eternal Protector
from your graveyard for {b}{b}{b}{g}{g}.
When Swamp Thing, Eternal Protector dies,
create a 0/1 green and black Husk creature
token with defender and '{t}: Add {b}{g}.'"
"I guard the Green, the plant life of Earth.
As long as it lives, I cannot die."