(: Add or to your mana pool.)
At the beginning of your upkeep, Seafloor Ridge deals 1 damage to target creature you control.
, Sacrifice Seafloor Ridge: Seafloor Ridge deals 1 damage to target creature or player.
: Add 
or 
to your mana pool.), Sacrifice Seafloor Ridge: Seafloor Ridge deals 1 damage to target creature or player.
