Night of Black Knives

This spell costs {1} less to cast for each
creature on the battlefield.
Blasphemous Act deals 13 damage to each
creature.
"It happened during the Golden Age of the
Erdtree, long before the shattering of the Elden
Ring. Someone stole a fragment of the Rune
of Death from Maliketh, the Black Blade.
And on a bitter night, murdered Godwyn the
Golden."