Just browsed through a few things on allakhazam, and it looks like this spell dropped for a few people, does any know if this spell was a thing on live https://everquest.allakhazam.com/db/spell.html?spell=1107
It was never a player-castable spell. Anyone who thinks a scroll with that spell dropped for them is mistaken.
I don't think that a -300 MR resist PBAE would exist in our timeframe. I'm thinking the forum comments are linked to the wrong spell. Perhaps the lucy number changed in the past at some point and it wasn't updated entirely on Alla's.