(: Add or to your mana pool.)
When Keldon Tower enters the battlefield, sacrifice it unless you pay .
: Keldon Tower becomes a 1/1 red and white Elemental creature with first strike until end of turn. It's still a land.
: Add 
or 
to your mana pool.).
: Keldon Tower becomes a 1/1 red and white Elemental creature with first strike until end of turn. It's still a land.
