Destruction, Illusion, Conjuration, Restoration, Mysticism, and Alteration.
conjuration, destruction, alteration, illusion, mysticism.
rb
Mysticism soultrap for enchanting your armor and wepons
The ability to breathe underwater in Oblivion can help you later on, but you don't necessarily NEED it. There is one quest, the quest that unlocks the master alteration trainer, in which you'll need to breathe underwater. However, at that point, you'll be at least an expert in alteration and will know the breathe underwater spell. Plus, you might not even decide to explore alteration.
I think the best magic skill is fire coulomb damage
If its magic as in spells you buy them from spell vendors. If you mean magic as in magicka you upgrade the corresponding thing (forgot the name) when you level up.
Natural Boost
you level up and then upgrade your magic skills
It is a drain fatique claymore called the Claymore of wearious.
Pretty much if you stat boost till your strenght is like 4000+ like my old characters was. Google permanent stat boost
There isn't one. There is only weakness to fire, frost, shock, magic, and normal weapons spells in oblivion. There is a weakness to disease spell in Morrowind, i think.