When Sea Den enters the battlefield, sacrifice it unless you pay 3 life.
: Add to your mana pool. If you played a land this turn, Add to your mana pool instead.
, , Sacrifice Sea Den: Target player draws two cards, then discards two cards.
: Add 
to your mana pool. If you played a land this turn, Add 
to your mana pool instead., , Sacrifice Sea Den: Target player draws two cards, then discards two cards.
