Board Thread:Off Topic/@comment-27316523-20180819060823/@comment-36105773-20180820035518

I recommend watching the series if you want to get an idea of how powerful Salem is. The only possible weakness for Salem is the SEW powers (Silver-Eyed Warrior powers). The gift of silver eyes is a rare, hereditary power that only 2 people in RWBY are known to have: Ruby and Summer Rose. Summer is dead, probably from trying to use her SEW powers to kill Salem. It's been accepted that SEW powers can affect Grimm by petrifying them, like when Ruby unleashed them against the Grimm dragon at the Battle of Beacon.

While the SEW powers could possibly be a weakness to Salem, it's not certain. First, we don't know if Salem is part Grimm. She appears to have physical Grimm characteristics, but that's not 100% certain. Also, Ruby is the only known SEW, and she doesn't have the ability to control them. Her SEW powers were onnly unleashed twice, both after experiencing Pyrrha's death or a flashback of her death. Watch Volume 3 "The End of the Beginning" at about 10 minutes through to see the SEW powers.

This is the only weakness that I know of, and it's not even a certain weakness.