When Elven Karoo enters the battlefield, sacrifice it unless you pay .
: Add to your mana pool. Return Elven Karoo to its owner's hand.
, Sacrifice Elven Karoo: Add to your mana pool.
.
: Add 
to your mana pool. Return Elven Karoo to its owner's hand., Sacrifice Elven Karoo: Add 
to your mana pool.
