@Arrogant
Can't really imagining myself fighting sephiroth, kafka, ardyn or sin with this playing in the background. It really depends on what you have in mind.
I think that's too static for a boss fight, I mean, three chords don't really feel like much of a progress or unstable-ness or any sort of satisfying discharge. Think about the player having to go through so many necessary fights in order to get to this one powerful enough.
Change the chords, transpose scales, change the instrumentation, add heavy fearsome basses of a heavy/heavily armed boss, add runs for to give a taste of the lush of force. Break the rhythm to force the player out of balance, spill in choir to make it feel as if that's an overworldly fight. Use poly-rhythmica to show the intensity of the scenes, with many different things going on at the same time.