The status effect "fury" seems to recharge my limit breaks at about double the normal speed. But I also saw that there are Items which will cure this effect. Is fury a bad status effect? Does it cause me to take more damage?
It reduces your Attack %, which represents your accuracy.
If you use magic, don't cure, or if your Attack % is high enough with it don't cure, otherwise cure.
Did some research, and it reduced magic and physical attack accuracy by 30%, so always heal, unless you need to build up your limit break, you can cause this status by using a Hyper.
Clarification: Fury builds up your limit meter faster by increasing the amount it raises by per 1 point of damage, it may also increase damage, however this is contested. Forum discussing it
Wow many wrong answers here, the mechanics are simple.
Fury will decrease hit % by 30%. Later in the game fury will not be noticeble as will nearly always hit even with it on the reason for this is you can have hit% well over 100% meaning a 30% reduction will be way above 70% and in many cases still over 100%, early game its very noticeable. Fury the positive effect is it doubles the charging rate of the limit guage which is very useful, you do not deal or take extra damage with fury.
sadness the opposite effect will decrease damage you take by 30% as a positive effect, but it will also halve the rate the limit gauge increases. the halving is not due to the damage reduction its due to been halved in real terms, so when factoring in the less damage taken the reduction is effectively about 65%.
Both effects have their usefulness, and I consider neither a negative effect, I use them both strategically during the course of the game.