Saving Shot

Rather than pay Saving Shot's mana cost, you
may sacrifice an artifact and discard a card.
Spend only red and/or green mana on Saving
Shot. Saving Shot is all colors of mana spent to
cast it.
Destroy target nonhumanoid creature, destroy
target attacking creature, destroy target creature
that's already been targeted this turn, or counter
target creature spell. (Humanoids are any creatures
with class subtypes, such as wizards, druids...)