if i may go off on a tangent... why are light spells in the illusion school? firstly its not an illusion because it actually illuminates darkness, and secondly i thought illusion was just the manipulation of people's minds? i dont see how manipulating your own mind to make you think you can see better in the dark makes any sense.
Agreed. There's an in-game book on the difference between Illusion and Alteration, which boils down to Illusion is subjective and can only be seen by the target(s) of a spell, while Alteration creates genuine changes in reality which will affect everyone. By that logic, the light spells should definitely be under Alteration unless you're the only one able to see the light you created (which would make it
much more useful for sneaky types, since it would let you see without letting others see you, much like Night Eye effects). Also by that logic, Detect Life-type spells should be Illusion rather than Alteration, since only the caster can see the glow on whatever is being detected by the spell.
i am also playing a archer/thief kind of character and pretty confused about the choice to put perks into magic or not.
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I can understand how crowd control spells in illusion can be helpful and also the conjured bow is useful but I want to avoid using magic altogether if possible.
Without looking at the builds, I say that, if you want to avoid using magic altogether, then avoid using magic altogether. Although I greatly enjoy having spells mixed into my stealth archer and find them quite useful, they are by no means essential. A magic-free assassin is definitely a viable concept.
I've noticed that Skyrim rewards pure archetype builds much, much more than the previous games in the series, which is cool, but can also result in overpowered characters if played correctly. Make a hybrid class for the most rewarding and challenging experience, in my opinion.
How so? I don't see a lot of synergy between perk trees beyond the simple "crafting makes strong items and high skills in using those items makes them stronger still"-type cases. I'd definitely say that the perk trees reward specialization a bit more (deeper perks are more useful and getting them requires you to both raise the skill level and invest more perks in prereqs), but that's specialization on the level of individual skills, not something dependent on which set of skills you go with.