What's one word that describes a villain who will do anything like deceit people, abuse his powers and murder to get what he wants (Please DON'T SUGGEST the word MACHIAVELLIAN!!!!!!!!...)

I checked a dictionary and found unscrupulous and unprincipled. Other words might be evil, wicked, infamous, flagrant, flagitious, atrocious, villainous, nefarious.

and I don't want a term that refers someone as immoral or purely evil too...

Mephistophelean

Certainly! In this case, a word that describes a villain who will do anything to achieve their goals, including deceit, abuse of power, and murder, is "malignant." The term "malignant" suggests a villain who embodies extreme malevolence and has no moral qualms about resorting to any means necessary to accomplish their desires.

To find such words, you can use a thesaurus. A thesaurus is a valuable tool that provides synonyms and related words to help broaden your vocabulary. You can access an online thesaurus by searching for "online thesaurus" in any search engine. Once you find a reliable source, you can enter your initial word, such as "villain," and the thesaurus will provide you with a list of alternative words that capture the specific characteristics you are looking for.

Remember to keep exploring different words and their synonyms to find the precise term that conveys the desired meaning in your specific context.