Guide to freeing up more enemy slots

Finally, there are some unnamed Guard enemies that I'm not sure what they're used for. I'd appreciate if anyone can let me know what they're for so I can clarify if they're unused and mark them as dummied enemies. The numbers are 368, 375, 376, 380, 382, and 383. They all have just normal attacks in their AI scripts except for 368, which has a two-turn script that includes a chance to use Joker Death, curious indeed. I've no doubt that one of these is used for Shadow but I'm not sure which one, and am not about the others.

see http://masterzed.cavesofnarshe.com/GameDocs/monster.txt