Recommend me some novels that satisfy your inner demons. Anything from pure gruesome revenge with an OP Protagonist to indiscriminately slaughtering with an Evil Protagonist to Yandere MCs that take what they want no matter the cost. Manga, anime, novels, RR, anything.
Reverend Insanity Renegade Immortal Steal (old rrl story) https://eternalpathdotnet.wordpress.com/category/steal/ Devourer of Destiny , webnovel.com God Of Slaughter pre-censorship and Martial God Asura first 700 chapters and Against the Gods first 300. Before they go all floppy on us. Tv series; Dexter.
Side Character Transmigrations: The Final Boss is No Joke - ShiSheng is the best. Wish I can join her breaking up all those CP...
Hmmm. Great Demon King has a few moments that feed the inner sadist. Cant think of much beyond that. almost forgot "Warlock of the Magus World"
Counterfeit Hero, albeit the TL stopped at 100+ of the 900+, so he hadn't really gotten to the larger scale battles or events.