I would also like you all to know that Gearbox still haven't addded DamageSource to vanilla enemies. Not even new ones.
1.0.3
Fixed printing "with" even if there is no skill name to get.
Added more robust detection if skill name needs to be replaced with SkillDef name.
On this note, check out DamageSourceForEnemies, while there aren't any localized strings to get, you will get skill def names and they are usually relatively close to whatever skill does.
1.0.2
Fixed skill name always printing as empty space.
Text formatting adjustments.
1.0.1
Added support for DamageSource, so now mod attempts to get skill name that killed the player. Don't expect anything for vanilla monsters tho, gearbox lmao