Balrogs, being spirits of fire, seem like a natural enemy to a creature of pure darkness
If memory serves I believe Balrogs are beings of fire, shadow, and darkness. I thought their “wings” were a mix of fire and smoke that they exuded and which Tolkien described as them being cloaked in it.
The balrogs were fire maia that were corrupted by Melkor into beings of fire cloaked in shadow. I interpret that to mean they’re primarily beings of fire that “wear” shadow over themselves (which composes their wings)
If memory serves I believe Balrogs are beings of fire, shadow, and darkness. I thought their “wings” were a mix of fire and smoke that they exuded and which Tolkien described as them being cloaked in it.
The balrogs were fire maia that were corrupted by Melkor into beings of fire cloaked in shadow. I interpret that to mean they’re primarily beings of fire that “wear” shadow over themselves (which composes their wings)