(Salt Steppe isn't a spell.)
When Salt Steppe enters the battlefield, sacrifice it unless you pay .
, : Tap target artifact with converted mana cost X or less.
: Add or to your mana pool. Salt Steppe deals 1 damage to you.
.
, 
: Tap target artifact with converted mana cost X or less.: Add 
or to your mana pool. Salt Steppe deals 1 damage to you.
