Shinrin, Warrior of the Forest

When Shinrin enters the battlefield, overgrow 5 lands. You may use any overgrown lands as if
they were your own. (Overgrown lands can only produce green mana)
Whenever a land gets overgrown, or a green spell enters the battlefield, you gain 2 life.
If Maguma burns the Forest, I would lose everything that I am. Therefore, Maguma is my bane, as much as he is yours.