(: Add or to your mana pool.)
Caldera Valley enters the battlefield tapped.
: Caldera Valley becomes a 1/1 red and green Troll creature with first strike until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Caldera Valley becomes a 1/1 red and green Troll creature with first strike until end of turn. It's still a land.
