Fell Beast

Flying
When Fell Beast attacks, attacking Nazguls get
+1/+0 until end of turn.
It was a winged creature: if bird, then greater than all
other birds, and it was naked, and neither quill nor
feather did it bear, and its vast pinions were as webs
of hide between horned fingers; and it stank. A
creature of an older world maybe it was.