Ok so my music theory knowledge is limited. I have been playing guitar for a couple of years now, mostly by ear and I often struggle in applying theory.
While writing a solo I wondered whether I could mix up modes and different scales to make it sound interesting. Let's say I want to write a solo for a song in the key of C minor and as it is a metal song it mostly uses power chords, will any minor scale work over it?
Can I use say a C minor pentatonic, C pure minor, C harmonic minor and C phrygian together in the solo (considering the chord progression is mostly power chords)? If not what can be my scale options while staying in a particular key?