Miscellaneous: Defense skill gained from killing blow doesn't stay

[Tecmos Deception]

[Tue Mar 27 16:43:04 2018] Guard Crystalwind bashes YOU for 42 points of damage.
[Tue Mar 27 16:43:05 2018] You have been slain by Guard Crystalwind!
[Tue Mar 27 16:43:05 2018] You have become better at Defense! (1)

[Tue Mar 27 16:49:40 2018] Guard Dayblaze bashes YOU for 29 points of damage.
[Tue Mar 27 16:49:40 2018] You have been slain by Guard Dayblaze!
[Tue Mar 27 16:49:40 2018] You have become better at Defense! (1)

[Tue Mar 27 18:38:29 2018] Guard Crystalwind kicks YOU for 42 points of damage.
[Tue Mar 27 18:38:29 2018] You have been knocked unconscious!
[Tue Mar 27 18:38:29 2018] You have been slain by Guard Crystalwind!
[Tue Mar 27 18:38:29 2018] You have become better at Defense! (1)

[Tue Mar 27 18:44:38 2018] You have been knocked unconscious!
[Tue Mar 27 18:44:38 2018] You have been slain by Beleth Streamfoot!
[Tue Mar 27 18:44:38 2018] You have become better at Defense! (1)


Hell. Maybe it's classic. I can't even begin to think of search terms to dig up classic sources on killing blows against a player giving you a defense (and maybe other stuff like block, dodge, etc.) skillup in chat but it not sticking with your character on account of the immediate death.