Andúril, Flame of the West

Equipped creature has: "Whenever this creature attacks, search your library for a creature card of human, dwarf, elf, or kithkin, reveal it and put it
on battlefield under yout control tapped and attacking. Shuffle you library."
"Very bright was that sword when it was made whole
again; the light of the sun shone redly in it, and the
light of the moon shone cold, its edge was hard and
keen. And Aragorn gave it a new name and called it Anduril, Flame of the West."