Plains Mountain enters the battlefield tapped unless you pay .
: Add to your mana pool. Return Plains Mountain to its owner's hand.
: Plains Mountain becomes a 2/2 red Goblin creature until end of turn. It's still a land.
.
: Add 
to your mana pool. Return Plains Mountain to its owner's hand.
: Plains Mountain becomes a 2/2 red Goblin creature until end of turn. It's still a land.
