When Crater Shoal enters the battlefield, sacrifice it unless you pay 1 life.
: Add to your mana pool. Activate this ability only if you control a Mountain.
: Add to your mana pool. Activate this ability only if you control an Island.
Sacrifice a basic land: Crater Shoal deals 1 damage to target player.
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: Add 
to your mana pool. Activate this ability only if you control a Mountain.
to your mana pool. Activate this ability only if you control an Island.
