I'm starting to level up my enchanting and I've been noticing that sometimes my enchants wipe out the properties already on the items. However I haven't been able to figure out exactly what enchants will wipe out what. I had a staff sometime back that I got from a quest and decided to add a 2handed weapon enchant, and when I did so, it pretty much ruined the staff, taking off one of the properties and making it much weaker.
For example, I have a pair of Feralfen Mystic's Handwraps
They are:
+18 Stamina
+18 Intellect
+12 Spirit
Equip: Increases damage and healing done by spells and effects by up to 20.
I haven't put any enchantments on them, this is the way they came. I'd like to enchant them for +fishing, but I'm afraid of wiping out any of the above properties.
Also, would an armor kit wipe out any of the above?
Right now I'm running around with 2 pairs of gloves one set enchanted for fishing, and these ones. I could really use the extra bag space.
Is there a definitive guide to the ins and outs of enchanting that anyone could point me in the direction of? Most of the guides I've found are "how to level" not "what not to do".