(: Add or to your mana pool.)
Glacial Caldera enters the battlefield tapped unless you control one or more creatures.
, Sacrifice Glacial Caldera: Glacial Caldera deals 1 damage to target creature or player.
: Add 
or 
to your mana pool.), Sacrifice Glacial Caldera: Glacial Caldera deals 1 damage to target creature or player.
