Eliminate the Competition (TDC) #179 [EN/N]

{4}{B} · Sorcery · As an additional cost to cast this spell, sacrifice X creatures. Destroy X target creatures. · Open hostilities are strictly forbidden at the Inventors' Fair, but "accidents" still happen. · Illustrated by Joseph Meehan · Tarkir: Dragonstorm Commander #179 · EDHREC rank 10764 · Magic: The Gathering, MTG