Wrath of the Valar

Choose a creature type. Destroy all creatures on
the battlefield that are not of the chosen type.
"Then the sun rose, and the host of the Valar
prevailed, and well-night all the dragons were
destroyed; and all the pits of Morgoth were broken
and unroofed, and the might of the Valar descended
into the deeps of the earth."—The Silmarillion