Luminous grove

{t}: Add {g} to your Mana pool.
When any Forest you control is tapped for Mana, you may look at the card on top of your Library. Then, you can put it at the bottom of your Library, or put it in your hand and put any other card from your hand at the bottom of your Library. You can only use this effect twice every turn.
In Blackwood, light is treasured.