1) Destruction sucks without mods 2) Your builds don't matter because you'll always end up as a stealth archer
Yeah destruction does suck past level 50 iirc. Honestly spellcrafting should have remained fron the previous games or at least make the damage output of destruction magic based on your level.
Destruction falls off by level 20 unless you're at master spells by then. Even then, that riften mage you can higher for 500 gold is better than you because his aim is better than yours ever will be because of how AI aim works.
Only 3 builds I've ever had work out we're Stealth (90% Archer, 10% Dagger) Sword and Board 2H with that beam sword from the dragonborn dlc
I'm screwing around now with a "I levelled only conjuration and non combat skills, let my minions kill everything for me" run and it's hilarious how bad the AI is. :l
I had no problems killing things until level 50 thats why I said that. Then again I probably did drop the difficulty cause it was a build I had zero expirence with. After 50 though I just switched over to conjuring weapons. I went out of my way to master every school except enchanting and alchemy iirc. So also having two undead thralls at all times helped in combat I suppose.
Anything below adept and the numbers make everything viable, except in like 2 fights if you're level 120+.