[Snake]

TL;DR of the idea for dummies:

This is an aesthetic suggestion.

>> Akashic damage should be reserved for 'magic' instakills.
>> Vorpal damage should be reserved for 'physical' instakills.

Basically, add a new damage type named 'Vorpal', that utilizes either a new animation or Vorpal Strike's animation. (Alternatively, make it so when 'Physical Akashic damage' is dealt, the damage becomes 'Vorpal' instead.)

The 999999 damage should be reserved for Akashic damage (For "magic" instakills), while Vorpal damage should deal 100% of the target's Maximum HP as its damage (For "physical" instakills).

Both Instakill instances will also reduce the target's HP to 0, for extra measure. (In which will play a 'Mirror Shattering sound' from Divine Eyes, as its queue.)

Both Instakill instances cannot be modified by damage modification effects.

'Tis all. I think this would look better. Akashic's animation isn't cutting it for physical techniques, so this could likely be an opportunity to introduce another fun aesthetic to the game.

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Now for Divine Ease...

Could it skip the mini-game in its entirety, and use Fray's animation followed by the final Mirror Shattering noise of the last Divine Eyes line? I think that'd look cooler than how it is now.

If skipping is not possible, just add two new skills and have the trait replace them. 'Mastered Eyes of Elimination' and 'Mastered Divine Eyes', which only play those requested animations and the rest being Ctrl+C and V.