When Sandstone Fortress enters the battlefield, sacrifice it unless you pay .
: Add to your mana pool. Sandstone Fortress doesn't untap during your next untap step.
, : Target Goblin gets +2/+0 until end of turn.
.
: Add 
to your mana pool. Sandstone Fortress doesn't untap during your next untap step.
, : Target Goblin gets +2/+0 until end of turn.
