When Keldon of Whispers enters the battlefield, return a land you control to its owner's hand.
: Add or to your mana pool.
Sacrifice Keldon of Whispers: Add or to your mana pool.
, , Sacrifice Keldon of Whispers: Destroy target artifact land.
: Add 
or 
to your mana pool. or to your mana pool.
, , Sacrifice Keldon of Whispers: Destroy target artifact land.
