When Molten Cavern enters the battlefield, you lose 1 life unless you reveal an artifact land card from your hand.
: Add to your mana pool. If you played a land this turn, Add to your mana pool instead.
: Return Molten Cavern to its owner's hand.
: Add 
to your mana pool. If you played a land this turn, Add 
to your mana pool instead.: Return Molten Cavern to its owner's hand.
