O-Kagachi's Vengeance

O-Kagachi's Vengeance deals 5 damage to target nonspirit creature. If you control five
or more spirits, it deals 5 damage to each nonspirit creature instead.
"The rage of the vengeful kami was so great that
it destroyed three thousand warriors in one attack, devastating the Mortal World."
—Oshiburo, Otawaran Storyteller