I have captured all of the Spirit battles in logs, except for The Spirit of Rage and The Icebound Spirit, and will include important parts of them below in separate spoiler tags.
Of note, each spirit seems to spawn an NPC very briefly that is a miniature of the same model of the spirit defeated but with a unique name that matches one of the "Spirit of ..." pet summoning spells. This is why I started to log these. The Icebound Spirit already has this information, but I did not notice a spawn for The Spirit of Rage. These flavor NPCs are non-hostile and I was unable to target them. I did not get screenshots of these NPCs and they despawn mere seconds after spawning, as is indicated by each emote. I haven't done this quest since the early 2000's, but I do not remember these NPCs or their emotes... My memory may just be at fault, though.
Also, all of the spirits were IUMMUNE to changes in attack speed, except for the Spirit of Malevolence, which resisted everything I attempted anyways- I suspect it is extremely likely to also be immune.
The Spirit of Decay
[Fri Oct 28 12:12:47 2022] You say, 'Hail, Scout Ahlikal'
[Fri Oct 28 12:12:48 2022] Scout Ahlikal says, 'It is a pleasure to meet you, but I do not have time to speak. I am waiting on official word from Shar Vahl. If you have been sent to assist me, please show me the Official Seal of the Khati Sha at this time. If you are not such a person, please carry on with your business and leave me to tend to mine.'
[Fri Oct 28 12:12:51 2022] You offered 1 Official Seal of the Khati Sha to Scout Ahlikal.
[Fri Oct 28 12:12:53 2022] Scout Ahlikal says, 'Well met, I'm glad that you made it! This jungle is oppressive, with its dank earth and dark canopy. The sooner you dispatch that spirit, the sooner we can both make our way out of this vile place. Move towards the ruins that lie about two hundred feet from here. The spirit will be there. Release it from its current form and return the totem to me. I will wrap it for you, so that you may place it in the container that you should have been given. Take care and be swift!'
[Fri Oct 28 12:12:53 2022] You gain party experience! (0.000%)
[Fri Oct 28 12:12:53 2022] You complete the trade with Scout Ahlikal.
[Fri Oct 28 12:12:53 2022] A large yellow spider drifts down from the jungle canopy. Perhaps it senses the proximity of its next meal.
[Fri Oct 28 12:13:16 2022] The Spirit of Decay begins casting Poisoned Web.
[Fri Oct 28 12:13:17 2022] You begin casting Sha's Revenge.
[Fri Oct 28 12:13:17 2022] You resist The Spirit of Decay's Poisoned Web!
[Fri Oct 28 12:13:18 2022] Ceartas`s warder told you, 'Attacking The Spirit of Decay Master.'
[Fri Oct 28 12:13:19 2022] Your target is immune to changes in its attack speed.
[Fri Oct 28 12:13:19 2022] The Spirit of Decay resisted your Sha's Revenge!
...
[Fri Oct 28 12:15:17 2022] You punch The Spirit of Decay for 2625 points of damage. (Finishing Blow)
[Fri Oct 28 12:15:17 2022] You gain party experience! (0.276%)
[Fri Oct 28 12:15:17 2022] You have slain The Spirit of Decay!
[Fri Oct 28 12:15:17 2022] Yekan the Weaver materializes before you. It seems to make a quick appraisal of you before fading from your sight.
[Fri Oct 28 12:15:29 2022] --You have looted a Totem of the Spider from The Spirit of Decay's corpse.--
[Fri Oct 28 12:15:54 2022] You offered 1 Totem of the Spider to Scout Ahlikal.
[Fri Oct 28 12:15:55 2022] Scout Ahlikal says, 'Amazing work, Ceartas! We are all in your debt. I have wrapped the totem to prevent its harmful magic from affecting you. Please keep it in the box until you can return it to Elder Dumul. If you have not found the other spirits, please seek them out. If you have filled the container, please seal it and return to Shar Vahl. Here is your seal. May the spirits watch over you.'
[Fri Oct 28 12:15:56 2022] You gain party experience! (0.000%)
[Fri Oct 28 12:15:56 2022] You complete the trade with Scout Ahlikal.
The Spirit of Malevolence
[Fri Oct 28 12:53:42 2022] Logging to 'eqlog.txt' is now *ON*.
[Fri Oct 28 12:53:45 2022] You say, 'Hail, Scout Rahjiq'
[Fri Oct 28 12:53:45 2022] Scout Rahjiq says, 'It is a pleasure to meet you, but I do not have time to speak. I am waiting on official word from Shar Vahl. If you have been sent to assist me, please show me the Official Seal of the Khati Sha at this time. If you are not such a person, please carry on with your business and leave me to tend to mine.'
[Fri Oct 28 12:53:48 2022] You offered 1 Official Seal of the Khati Sha to Scout Rahjiq.
[Fri Oct 28 12:53:49 2022] Scout Rahjiq says, 'Keep your head down, mate! The spirit that you have come for is very close. I have spotted it several times today. It keeps appearing near that odd structure just over the hill. Be careful not to attract the attention of those invisible creatures that roam near the structure. Just release the spirit and return the totem to me. I'll prepare the totem for placement in the container that you were given.'
[Fri Oct 28 12:53:49 2022] You gain party experience! (0.000%)
[Fri Oct 28 12:53:49 2022] You complete the trade with Scout Rahjiq.
[Fri Oct 28 12:53:50 2022] The air before the large monolith grows solid, as misty tendrils wrap together in the shape of a large wolf.
...
[Fri Oct 28 12:57:19 2022] You kick The Spirit of Malevolence for 53 points of damage.
[Fri Oct 28 12:57:19 2022] You gain party experience! (0.276%)
[Fri Oct 28 12:57:19 2022] You have slain The Spirit of Malevolence!
[Fri Oct 28 12:57:19 2022] Kahliz the Mist Runner appears in the misty corpse of the fallen spirit. It nods at you and appears to grin. The mist that makes up its shape then begins to dissipate.
[Fri Oct 28 12:57:21 2022] You can't use that command right now...
[Fri Oct 28 12:57:21 2022] --You have looted a Totem of the Wolf from The Spirit of Malevolence's corpse.--
[Fri Oct 28 12:57:38 2022] You offered 1 Totem of the Wolf to Scout Rahjiq.
[Fri Oct 28 12:57:40 2022] Scout Rahjiq wraps the totem and returns it with the seal you gave him and says, 'That spirit was very powerful. I'm glad that you were able to release it. Please keep this totem safe until you can return to Shar Vahl. Once you collect all of the totems, seal the box and return it to your master. May the spirits watch over you!'
[Fri Oct 28 12:57:40 2022] You gain party experience! (0.000%)
[Fri Oct 28 12:57:40 2022] You complete the trade with Scout Rahjiq.
The Spirit of Sorrow
[Fri Oct 28 13:03:47 2022] Logging to 'eqlog.txt' is now *ON*.
[Fri Oct 28 13:03:49 2022] You say, 'Hail, Scout Eyru'
[Fri Oct 28 13:03:52 2022] You appear.
[Fri Oct 28 13:03:53 2022] You say, 'Hail, Scout Eyru'
[Fri Oct 28 13:03:54 2022] Scout Eyru says, 'It is a pleasure to meet you, but I do not have time to speak. I am waiting on official word from Shar Vahl. If you have been sent to assist me, please show me the Official Seal of the Khati Sha at this time. If you are not such a person, please carry on with your business and leave me to tend to mine.'
[Fri Oct 28 13:03:57 2022] You offered 1 Official Seal of the Khati Sha to Scout Eyru.
[Fri Oct 28 13:03:58 2022] Scout Eyru says, 'It is a relief to see you. I was beginning to fear that no one would be able to find me in this miserable swamp. I wanted to get word back to Shar Vahl about my location, but I was afraid that I would lose the trail off this spirit if I were to break off my pursuit. This location is as strange of a destination for our spirit as it is dangerous. I have seen the spirit several times and it is very out of place here. I can't help but think that the transformation has left the spirit confused beyond all repair.'
[Fri Oct 28 13:03:58 2022] Scout Eyru says, 'If you move towards the large body of water just north of here, you should be able to find a vantage point that will allow you to see it. The spirit has been resting near the surface of the water there for several days now. Once you release the spirit, please return to me with the totem that binds it. I will prepare the totem, so that you may return it to Shar Vahl.'
[Fri Oct 28 13:03:58 2022] You gain party experience! (0.000%)
[Fri Oct 28 13:03:58 2022] You complete the trade with Scout Eyru.
[Fri Oct 28 13:03:59 2022] A giant reptile roars, as it lurks along the edge of the pond. It appears that it senses your approach.
...
[Fri Oct 28 13:04:37 2022] You begin casting Sha's Revenge.
[Fri Oct 28 13:04:38 2022] Ceartas`s warder bashes The Spirit of Sorrow for 21 points of damage.
[Fri Oct 28 13:04:39 2022] Your target is immune to changes in its attack speed.
[Fri Oct 28 13:04:39 2022] The Spirit of Sorrow resisted your Sha's Revenge!
...
[Fri Oct 28 13:08:16 2022] You punch The Spirit of Sorrow for 98 points of damage.
[Fri Oct 28 13:08:16 2022] You gain party experience! (0.276%)
[Fri Oct 28 13:08:16 2022] You have slain The Spirit of Sorrow!
[Fri Oct 28 13:08:16 2022] --You have looted a Sunshard Pebble from The Spirit of Sorrow's corpse.--
[Fri Oct 28 13:08:16 2022] Herikol the Lurker sits motionless for a moment, as if pondering its location. Its form turns to water and slowly begins to melt away.
[Fri Oct 28 13:08:21 2022] --You have looted a Totem of the Alligator from The Spirit of Sorrow's corpse.--
[Fri Oct 28 13:08:39 2022] You have become better at Swimming! (157)
[Fri Oct 28 13:08:56 2022] You offered 1 Totem of the Alligator to Scout Eyru.
[Fri Oct 28 13:09:00 2022] Scout Eyru says, 'Splendid job, Ceartas! This wrapping should help to shield you from any of the negative properties that may be manifested in the totem. You should be fine if you keep it in the box that you were given. Once you collect all of the totems, please seal the box and return it to Shar Vahl. Be careful to protect the totems during the course of your travels. The balance of power in several realms is reliant on your ability to fulfill this mission. Please do not fail us.'
[Fri Oct 28 13:09:00 2022] You gain party experience! (0.000%)
[Fri Oct 28 13:09:00 2022] You complete the trade with Scout Eyru.
The Spirit of Torment
[Fri Oct 28 13:22:09 2022] Logging to 'eqlog.txt' is now *ON*.
[Fri Oct 28 13:22:11 2022] You say, 'Hail, Scout Malom'
[Fri Oct 28 13:22:11 2022] Scout Malom says, 'It is a pleasure to meet you, but I do not have time to speak. I am waiting on official word from Shar Vahl. If you have been sent to assist me, please show me the Official Seal of the Khati Sha at this time. If you are not such a person, please carry on with your business and leave me to tend to mine.'
[Fri Oct 28 13:22:13 2022] You offered 1 Official Seal of the Khati Sha to Scout Malom.
[Fri Oct 28 13:22:15 2022] Scout Malom says, 'Thank you for coming. I am surprised that you were able to find me. I barely know where I am at this point. I followed the vile beast that has been corrupting the spirits, but he eluded me after I followed him to that ridge up there. Fortunately, the spirit that you seek has remained at the site of its transformation. Use levitation to work your way up the falls and return to me with the totem that you will acquire from releasing the spirit.'
[Fri Oct 28 13:22:15 2022] You gain party experience! (0.000%)
[Fri Oct 28 13:22:15 2022] You complete the trade with Scout Malom.
[Fri Oct 28 13:22:15 2022] Something glows brightly from high above the falls.
...
[Fri Oct 28 13:27:29 2022] You begin casting Sha's Revenge.
[Fri Oct 28 13:27:30 2022] Ceartas`s warder pierces The Spirit of Torment for 81 points of damage.
[Fri Oct 28 13:27:30 2022] Your target is immune to changes in its attack speed.
[Fri Oct 28 13:27:30 2022] The Spirit of Torment resisted your Sha's Revenge!
...
[Fri Oct 28 13:28:54 2022] You punch The Spirit of Torment for 57 points of damage.
[Fri Oct 28 13:28:54 2022] You gain party experience! (0.368%)
[Fri Oct 28 13:28:54 2022] You have slain The Spirit of Torment!
[Fri Oct 28 13:28:54 2022] Sharik the Watcher says, 'Your efforts are most brave. The realm of spirits is in constant danger these days. Mortals are tampering with the balance more and more often. Learn from these battles and make note of the importance of balance. The task that you complete this day may mock you in the days to come if you do not heed its lesson. Take care, my friend.'
[Fri Oct 28 13:28:56 2022] The spirits depart.
[Fri Oct 28 13:29:12 2022] --You have looted a Totem of the Watcher from The Spirit of Torment's corpse.--
[Fri Oct 28 13:29:43 2022] You can no longer levitate.
[Fri Oct 28 13:29:48 2022] You offered 1 Totem of the Watcher to Scout Malom.
[Fri Oct 28 13:29:49 2022] Scout Malom says, 'Great work, friend. Take this totem and place it in the case that you were given in Shar Vahl. Do not unwrap the totem and be quick in your pursuit of the others. Once you have all of the totems, please seal the case and return it to Shar Vahl. I can only hope that you will get to all of the spirits in time. Take care, friend.'
[Fri Oct 28 13:29:50 2022] You gain party experience! (0.000%)
[Fri Oct 28 13:29:50 2022] You complete the trade with Scout Malom.
One last note, The Spirit of Rage/Scout Vyrak is listed twice in the walkthrough.