Anor Londo, City of the Gods

Anor Londo, City of the Gods, enters the battlefield tapped unless you control a God.
At the beginning of each upkeep, you gain 1 life.
{t}: Add {w}{w} to your mana pool.
{b},{t}: Transform Anor Londo, City of the Gods. Activate only if you have a card named Dark Sun Gwyndolin in your graveyard.