(: Add or to your mana pool.)
Underground Creek enters the battlefield tapped.
, , Sacrifice Underground Creek: Target player discards a card.
, , Sacrifice Underground Creek: Return target creature you control to its owner's hand.
: Add 
or 
to your mana pool.)
, , Sacrifice Underground Creek: Target player discards a card., , Sacrifice Underground Creek: Return target creature you control to its owner's hand.
