When Flagstones Tubes enters the battlefield, sacrifice it unless you pay 3 life.
: Add to your mana pool. Activate this ability only if you control a Plains.
: Add to your mana pool. Activate this ability only if you control a Swamp.
Shadow
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: Add 
to your mana pool. Activate this ability only if you control a Plains.
to your mana pool. Activate this ability only if you control a Swamp.
