(Sunken Cairns isn't a spell.)
At the beginning of your upkeep, Sunken Cairns deals 2 damage to target creature you control.
, : Look at target player's hand.
: Add or to your mana pool.
Sacrifice Sunken Cairns: Add or to your mana pool.
, 
: Look at target player's hand.: Add 
or 
to your mana pool. or to your mana pool.
