Okay, small technicality - but wouldn't any being have zero spirit after it were dead? It has zero health, why not zero spirit?
Any spirit associated with a particular body would shake itself from its mortal coil and fly into the ether, leaving that body with nothing but cold, dead flesh.
Just a thought...
Plain boar
Health before battle:
285
Spirit before battle:
65
Class:
Boars
Level
12
Range:
0
Total Armor:
108
Critical Hit Chance:
1%
Block Chance:
0%
Damage
5.1 - 11.5
Health after battle:
0
Spirit after battle
65
Successful/Attacks
1/8
Damage Done:
5.1
Critical Hits Done:
0