When Mountain Debris enters the battlefield, sacrifice it unless you pay .
: Add to your mana pool. Return Mountain Debris to its owner's hand.
, Sacrifice Mountain Debris: Mountain Debris deals 1 damage to target creature or player.
.
: Add 
to your mana pool. Return Mountain Debris to its owner's hand., Sacrifice Mountain Debris: Mountain Debris deals 1 damage to target creature or player.
