Thermodynamics taught me chaos is the ultimate fate so you should make intelligent decisions to make the most of high grade energy, because everything you love and care for will dissipate into chaos and nothingness eventually.
If some geniuses do invent a robust framework for physics based combat which results in realistic sword swings unlike Dark Souls' bounce/no-bounce mechanic, it will be very fun
The damage could be calculated depending on how powerful the swing was and where it hit the enemy. I fantasize about this often
Thermodynamics taught me chaos is the ultimate fate so you should make intelligent decisions to make the most of high grade energy, because everything you love and care for will dissipate into chaos and nothingness eventually.