I know this post is old, but this was the second link on google i clicked, and I just downloaded skyrim remastered a month-ish ago, and i have a new build that i am really having fun with. I got my enchanting up to 100 as fast as i could so i could have 2 enchantments per item, and i lowered my destruction spell cost to 0 magicka and had a second enchantment on each piece of heavy armor that i wore that impacted how i like to play without magic which is with 1 handers and a shield against non magical enemies and 1 handers and wards against enemies that are mages, but that's without magic. When I use destruction magic with the enchantments on the super powerful heavy armor i am literally unstoppable dual casting expert level destruction spells. When they cost nothing you can literally be pinned in a corner against multiple enemies and absolutely just murder everyone with the thunderbolt spell like i did for fun when i got caught stealing in the markarth palace (i cant think of its name). I waited to do the entire war campaign until this point and i literally was the only person to kill any of the opposing soldiers on the raids. It is way to overpowered with no cost dual cast expert level destruction spells. I beat really high level dragons without even getting hit, which can get really boring so thats why you use other perks on skills you like personally. Definitely upgrade your sneak and the only perks you really need in destruction are novice destruction, fire, lightning and ice (if you like ice, i personally dont use it) and impact. all the other perks lowering cost of spells are useless after you can enchant your armor with fortify destruction so keep that in mind. sorry my thing is a big block of text
