(Howltooth Sandstone isn't a spell.)
Howltooth Sandstone enters the battlefield tapped unless you control three or more colorless permanents.
, : Tap target artifact with converted mana cost X or less.
, : Add to your mana pool.
Share this card: Go to Innistrad spoiler mode and fool your friends!
GoodGamery.com
, 
: Tap target artifact with converted mana cost X or less.
, 
