[Rygar]

So I'm digging into this further, the main comment that is convincing everyone here is this one:

THE PLANE BUSTER SPELL, By Carbon puppetmaster - rodcet nife (1/28/2001)

Since Verrant has fixed this spell, it is one of the best spells enchanters posses. It makes crowd control a breeze. In the past, most enchanters had to lead with tash on high level mobs to make an alluire or dazzle stick. This of course agros the hell out of the mob and we spend the next 10 seconds or so hoping that someone taunts the mob off us or getting lucky and get a dazzle or allure off; otherwise we are dead (even with good clerics in ones group). This spell buys us the time to get our dazzle or allure off. Lead wtih RA, then tash, mob agros, hits you once or twice, mezzes, and you hit with allure or dazzle. Get resisted, no biggy, take another one or two hits, and try again (repeat until the allure or charm sticks). I have utilized this technique in HATE with amazing results. Puller snags two clerics and a golem usua;;y means trouble! Not in this case, just apply above mentioned to clerics while tanks deal with golem and you will have to clerics staring out into space! The best part is the little damage we take! I suggest my fellow enchanters give it a try. Going to use in a fear breakin latter this weekend, should make for interesting results.

The legitimacy of this post is really called into question because of Dev interview comments on 1/29/01:

Reoccurring Amnesia: The reports are pretty overwhelming, this spell does not reoccur.

Later poster calls him out on the recast timer not being able to sustain on 2 mobs as he claimed to do:

A FEW THINGS..., By Vokos (7/22/2001)

First off, Carbon obviously has no idea what he's talking about... with duration and recast both 24 seconds, you cannot keep this on multiple mobs.
Second, note it says 'will cast a memory blur'. Not 'will memory blur.' So, it's essentially like casting the same old crippled Memory Blur on the target every six seconds.

Some very late commentary I found seems to imply this is still broken in 2006 and a sucky spell:
http://everquest.allakhazam.com/db/spell.html?spell=194

Jan 12 2006
This spell memblurrs 25% initially, and does nothing for the remaining time it is on the creature. The spell description shows it only memblurrs 25%, it does not reoccur, like the title suggests. This spell has never worked as intended, and most likely never will.

In regards to the 25% memblur (which the wiki page lists and most likely is not accurate), this Carbon makes it seems like every tick is going to work and you only re-aggro with spells. However, old Lucy history shows this used to be a terrible 1% mem blur chance in the old spdat.
http://lucy.allakhazam.com/spellhist...94&source=Live

2002-03-19 05:50 Changed Slot 1 from "Memblur(1%)" to "Memblur(25%)"

This 1% value was referenced in my other links previous in the page, which by Dec 2002 had the higher values mentioned as well on the page:

Reoccurring Amnesia - Reoccurring mem blur, like a mem blur dot. Very odd hatelist behaviour when it suddenly works late in the fight. Medium odds of it working (maybe 50%), for 100 mana.

Note that the percent chance of it working I gave is -not- counting resists. If the spell lands at all, it still frequently doesn't do a damn thing. I've actually had
nearly as good luck clearing aggro with mez as any blur line spell. They give percentages on lucy, with mezzes varying from 1-2% and mem blurs varying from 10-30

At the time of that post the SPDAT was a 25% per pulse, and often (assuming it was pulsing) would not work at all. If our in era SPDAT is 1-2%, it would certainly explain why it would hardly be working even if it pulses 4 ticks. I'll try and obtain a legit copy of the SPDAT for the value (I'm assuming the dev team has one anyways).

In other words, this Carbon guy seems like he read up on the spell and made himself out to be this amazing plane buster enchanter but was called out on a lot of falsehoods in his story.

Even so, other commentary implies it 'works on seafury cyclops' but 'doesn't work in hate' (if true, another strike against Carbon the Plane buster), other people saying around 1/28/01 that it now works, yet documentation that it was still broken after this or a terrible success rate. Perhaps it was buggy, perhaps it worked for a short time but got broke again, not absolutely sure.

All I know is I'm not seeing a lot of praise for this spell even out of era after the 25% chance to blur, so even if fixed to allow multiple successful blurs (I couldn't find that interview), the odds would be so low I can't imagine you'd want it in your spell line up.