I just started up a Bosmer mage, i'm planning to spread my perks out between Destruction (mostly frost spells) and restoration.
Is it necessary to use alteration or conjuration? will i get 1 shot all the time without mage armor or a helper?
Also, is it viable to JUST use frost spells?
I'm a level 44 Altmer with high ranks in illusion, conjuration, destruction, and alteration.
No, don't specialize in frost spells. If there is only ONE destruction magic you want to specialize in, let it be lightning since an extremely small portion of enemies show any kind of resistance to it. Most enemies have frost resistance and fewer have fire resistance. Fire is also better to specialize in than frost because of the lower magicka usage and higher damage quotient.
Alteration is crucial if you want to play as a true, pure mage and not wear any armor. I highly recommend this playstyle because a master conjuration/destruction mage with a very high armor rating is ALMOST invincible in battle, but the game becomes extremely boring because you're just not afraid of anything killing you. You only get one-shotted if you have less than 200 hp with no magical resistances and armor by a small portion of enemies in the game. With ebonyflesh, mage armor perk x3, and your built in 25% resistance to magic as a Breton, you'll be a force to be reckoned with in battle.
Conjuration/Illusion are very good complements to Destruction. in fact, I recommend once you reach past level 30, you use Illusion and Conjuration as your main magic source and supplement them with Destruction as your secondary. Destruction starts to feel a little weaker past lets say... 35'ish, even with the perk augmentations. Also, Destruction without cost reductions via enchantments is a magicka gorger.
Hope that helps
