(Darkslick River isn't a spell.)
Whenever Darkslick River becomes tapped, it deals 1 damage to you.
, : Scry 2.
: Add or to your mana pool.
Sacrifice Darkslick River: Add or to your mana pool.
, 
: Scry 2.: Add 
or 
to your mana pool. or to your mana pool.
