is magic actually a viable way to build now ?
There is more being then a mage then using destruction all the time which will become boring and not being all round mage.
Conjuration: Summon up something like weapons if you want still use melee. Also summon a atronachs or a zombie for distraction or help. With conjuration you can raise a npc you just killed and fight for you. Later on in you can raise the undead if you keep working on it. Also soul trapping in the school of conjuration.
Illusion: Is one of most power school of magic. Being a puppeteer for I as a player is fun. You can calm if you are a animal lover. Or you can calm a bandit who wants to you to pay a toll. You can cast a frenzy spell to one bandit and he/she fight who is near him/her as long they
don't see you.
Alteration: If you don't want to wear armour but want protection alteration is the go. Cast Stone or Iron flesh before a battle and it just like wearing armour. But you can wear armour but there is a perk in alteration 'Mage Armour' that stone flesh is x2 stronger if you not wearing armour. You can go out there naked if you want to. Also cast it before battle.
Restoration: For the spell drinking wards that will refill you magicka so it last longer. As for restoration you can repel the undead.
What I done when I level up I only update magicka not the other two. So what my health is 100 all the time I have my stone flesh to protect my character. Stamina? Why my character a mage uses a sword or a bow.
This what I do. My chacater see bandits. Cast a the stone shield first. Then I go to sneak, my character sees five bandits so she cast frenzy so they fight themselves. She keeps casting frenzy spells until one left. Then she goes for the kill. Fire ball until dead.
My character sees a dragon. Stone flesh, fire balls and cover until dragon is dead. When using fire ball, time your shots, leave 2 to 3 seconds between fire balls.
Make sure bring potions with you for refill magicka and health. But I played in adept because it is 50/50. I went to hard core, too many sponges.
That what I done.