River of Whispers enters the battlefield tapped.
: Add or to your mana pool.
Put River of Whispers on top of your library: Add to your mana pool.
, : Target player puts the top card of his or her library into his or her graveyard.
: Add 
or 
to your mana pool.
to your mana pool. , : Target player puts the top card of his or her library into his or her graveyard.
