Moor River enters the battlefield tapped unless you sacrifice a Skeleton Cleric.
: Add to your mana pool. Activate this ability only if you control a Swamp.
: Add to your mana pool. Activate this ability only if you control an Island.
Flying
: Add 
to your mana pool. Activate this ability only if you control a Swamp.: Add 
to your mana pool. Activate this ability only if you control an Island.
