Compare
Locrian vs Locrian Natural 6
Standard Locrian has a ♭6; Locrian ♮6 raises it. The 2nd mode of harmonic minor works over m7♭5 chords more naturally.
Locrian
R
♭2
2
♭3
3
4
♭5
5
♭6
6
♭7
7
Locrian Natural 6
R
♭2
2
♭3
3
4
♭5
5
♭6
6
♭7
7
What's different
Only in Locrian
♭6
Only in Locrian Natural 6
6
In both
R♭2♭34♭5♭7
Other comparisons