Leechridden Valley enters the battlefield tapped unless you pay .
: Add or to your mana pool.
Sacrifice Leechridden Valley: Add or to your mana pool.
, Sacrifice Leechridden Valley: Add to your mana pool.
.
: Add 
or 
to your mana pool. or to your mana pool., Sacrifice Leechridden Valley: Add to your mana pool.
