The fact of the matter is, that a player CANNOT be effective in this game as a Pure Destruction Mage on Master Difficulty.
1. Must use companions
2. Must use Atronachs/Conjured minions
3. Must use Enchanting
4. Must use other schools of magicka
Damage does not scale at all. A level 45 Mage, with Destruction at 100, difficulty of Master, going on recently issued Blook Horker mission for example, using Ice Storm or Ice Spear did jack and squad for damage. I'm fine with being one shotted by their arrows (to the knee), as that is what SHOULD happen to a pure mage in robes. But, I'm finding it hard to believe that there is no damage adjustment, even if the level of the Destruction skill increases. I have 780 something magicka and my regen, I think, sits at 150%, 100%, 26%, 26%, 26%, and 40% with all the items that are allowed a magicka regen bonus (such as Dragon mask, Master Destruction Robe, gloves, amulet, etc).
Fire spells at higher levels are essentially useless since the burning effect does just about NOTHING to higher level enemies and only lasts like 2 seconds.
That Atronachs don't scale is garbage as well. I love a Frost Atronach getting one shotted by Bandit Chiefs/Leaders. I don't have as strong a Conjuration skill as Destruction, but for me that takes forever to go up anyways, even though I conjure up a minion ALL THE TIME.
I'm also peeved that certain items can't have certain enchantments. But that's for another discussion.
Damage for Destruction based magic svcks. I'm almost at level 50 and I still go up against enemies that make me feel like a little schoolgirl getting spanked.
It depends on what level you are too,but I played my first mage and I thought it was so OP, i killed everything so much easier then my melee character, dragons were no problem, neither were falmer, centurions, or spheres, just make sure you get the right spells for your guy as well.
I thought, on Master, it was quite the opposite. My Warrior had Deadric weapons and armor with dual enchantments that [censored] pretty much anything. My Mage on the other hand takes forever to kill stuff and I had to give my companions smithed and enchanted armor to make them effective. Whoever heard of a Mage Master Smith? The game is NOT balanced at all.