I just added to my current Dark Brotherhood Assassin class called, "Priest of Sithis". I spent the last few hours just milling Destruction magic and using all the spell tomes I gathered up. If you guys think this class is overpowered, I have no qualms of reloading back to my old save as I didn't do anything story wise or got anything good story wise.

My class focuses on Sneak and One-Handed. The weapons are Dragon Bane and a Daedric Dagger enchanted with a soul trap and absorb health enchantment. Block is about 50 and I don't plan on going any further. The class is about 89 in Illusion magic (invisibility) and alteration for the sake of Mage Armor.

However, with this new class, I plan on using Destruction Magic but for roleplaying sake, only Lightning spells. I have the mod "Brotherhood of Death" which is an armor mod that's enchanted to make Destruction Magic cast 0%.

Well frankly, it's so OP that using destruction magic or not is absolutely trivial. Sneak is very powerful itself, but when combined with illusion...it takes the fun out of it for me.