prevail against (someone or something)
To overcome and succeed against someone or something. I believe as strongly today as I did when I was younger that love will always prevail against hate in the long run. No one expected our team to prevail against the defending champions, but we found it in ourselves to win.
prevail against someone or something
to win out over someone or something; to dominate someone or something. You will not prevail against me! I am sure that our team will prevail against the challengers.