If you've ever wanted to call Skyrim's enemies primitive screwheads while you shoot fire from your hand at them, then this is the mod for you. The Ash Williams (Bruce Campbell) voicepack combined with Additional player voices will have your Dragonborn saying "groovy" and "who's your daddy?" and number of other catchphrases from the Evil Dead movies at regular intervals.
To clarify how Ash got from our world to Nirn you might also want to install Necronomicon Book of the Evil Dead, or you could play through the Evil Dead mod to experience a quest and worldspace based on the events of the movies. Also, that mod will give you a chainsaw. And if you'd rather have Ash as your companion then the Ash Williams - Evil Dead follower mod has you covered, and it is the source of the audio recordsdata the voicepack makes use of.
As saving the world isn't easy, so here are the best mods for Skyrim Special Edition to help you out:
Vortex: It's an extremely useful ability, and it works with a number of other games like Fallout 3 and 4, The Witcher series, the Darks Souls games, XCOM 2, and lots more.
Mod Organizer 2: It handles a bunch of Bethesda games, so you can use it to manage things other than just Skyrim SE if you'd like.
Unofficial Skyrim Patch: This mod is a compendium of hundreds of fixes for bugs, text, objects, items, quests, and gameplay elements assembled by prolific modder Arthmoor.
SkyUI: This interface replacer makes Skyrim feel like it was designed for mouse controls, and lets you filter and sort inventory based on weight, value, damage and the like.
There's many more to it like Better Message Box Controls, A Quality World Map, Achievements Mod Enabler, Project Proteus, Racemenu, True 3D Sound for Headphones etc.
Skyrim may be a huge place, but modders are always finding ways to make it bigger. There's also the collection of some really impressive location overhauls to expand your Skyrim experience along with some huge quest mods to take you on new adventures. There's also various beautiful places adding some of your favourite companion characters and some cool creatures too. Lastly, there's also additional crafting abilities, and new shouts and spells to play with.
So, the list is too big and we've just mentioned few of them. You need to play the game to experience its features and adventure on your own.