I took some time and looked through IS items, and found this:
http://wiki.ffxiclopedia.org/Mercenary%27s_Trousers
I guess the Magic Accuracy +10 is active the whole time everywhere in game?
Is this better then the +5 elemental magic slops when fighting high resist mobs, and maybe as good as main pants for BLM and RDM when fighting mobs that resist sometimes?
XI Wiki

