B5 power chord in A minor?

Question

I'm trying to write a rock/punk song in the key of A minor and the chorus goes: B5, C5, G5, F5. The B chord in A minor is B diminished, does that mean I have to use the diminished chord or can I use the power chord?

Answer 1

You are not writing a classical song so you are free to do what sounds best for the song. Although, the B diminished chord resolves to C which is the relative Major of A minor.