Desperate Bombardment

When Desperate Bombardment enters the battlefield, create a tapped Powerstone token.
(It's an artifact with "{t}: Add {c}. This mana can't
be spent to cast a nonartifact spell.")
{1}, Sacrifice an artifact or creature: Desperate Bombardment deals 1 damage to any target.
_________________________________________
"Generals have a liberal definition of 'ammo'."
—Farid, Fallaji Soldier