When Unstable Catacombs enters the battlefield, you lose 2 life unless you reveal an artifact creature card from your hand.
: Add to your mana pool. Return Unstable Catacombs to its owner's hand.
Cycling (, Discard this card: Draw a card.)
: Add 
to your mana pool. Return Unstable Catacombs to its owner's hand.
(, Discard this card: Draw a card.)
