There's an SoF era clicky that is very useful, it does a lot for you no matter which purposes you're using it for.. It is helpful for mostly any class..
Here's what it does, and how to get it.

The Effect:

1 : Infravision
3 : Increase all resists +50
4 : increase mana pool +400
5 : increase endurance pool +400
6 : mitigate spell damage +15% max 3 000
7 : mitigate melee damage +7% max 3 000
8 : increase max HP +700
11 : Spell Damage Shield -500
12 : increase damage shield +120

The whole quest has a great write-up to do it on
http://mobilis.wordpress.com/quests/secret-of-faydwer-were-orc-bone-circum-combine-task


The effect does fade after you are hit 32times by melee, or after the spell / melee mitigation has hit it's cap.
But for casters, the clicky is extremely useful, and even for melee, since you don't usually get hit that much unless you're taking A.E. Ramp or something similar.

Just thought I would share this quest with those of you who don't know about it.
Good luck