(: Add or to your mana pool.)
When Coastal Den enters the battlefield, sacrifice it unless you pay 1 life.
, , Sacrifice Coastal Den: Return target creature you control to its owner's hand.
, : You gain 2 life.
: Add 
or 
to your mana pool.), , Sacrifice Coastal Den: Return target creature you control to its owner's hand.
, : You gain 2 life.
