(Cascade Marsh isn't a spell.)
At the beginning of your upkeep, Cascade Marsh deals 1 damage to target creature you control.
, : Scry 2.
: Add or to your mana pool.
Sacrifice Cascade Marsh: Add or to your mana pool.
, 
: Scry 2.: Add 
or 
to your mana pool. or to your mana pool.
