When Moonring Steppe enters the battlefield, sacrifice it unless you pay .
: Add or to your mana pool.
Sacrifice Moonring Steppe: Add or to your mana pool.
, Sacrifice Moonring Steppe: Add to your mana pool.
.
: Add or 
to your mana pool. or to your mana pool., Sacrifice Moonring Steppe: Add 
to your mana pool.
