When Sapseep Plains enters the battlefield, sacrifice it unless you pay .
: Add or to your mana pool.
Sacrifice Sapseep Plains: Add or to your mana pool.
, : Sapseep Plains deals 1 damage to target attacking creature.
.
: Add or 
to your mana pool. or to your mana pool., : Sapseep Plains deals 1 damage to target attacking creature.
