(Leechridden Conclave isn't a spell.)
Leechridden Conclave enters the battlefield tapped unless you control one or more Shapeshifters.
Sacrifice a land: You gain 1 life.
: Add to your mana pool. Return Leechridden Conclave to its owner's hand.
: Add 
to your mana pool. Return Leechridden Conclave to its owner's hand.
