I've got this, - But i can't use it!! Anyone know why..? I currently have more than 400 fame there. To be exact i have 25k fame at Arcanum lols.
Arcanum Association Scroll - Use this item to increase your reputation in Arcanum Assocation.
I've jus gotten this today too - the actual enchant! :0 not just the formula.
Enchant - Violence Lv9 +25 ATK Spd points.
Some guildies were discussing this one earlier and it seems although you can have up to 36k fame in a faction, the scrolls that give you faction fame only work up to 25k. Any more than that and the scroll will stop working as you've seen.
I'm not sure if it's intended or not, but I know quite a few people are having the same problem.