(Pine Caldera isn't a spell.)
At the beginning of your end step, if you didn't cast any spells this turn, Pine Caldera deals 1 damage to you.
, : Tap target artifact with converted mana cost X or less.
: Add or to your mana pool.
, 
: Tap target artifact with converted mana cost X or less.: Add 
or 
to your mana pool.
