Looking for an mc who is strong but also like a scientist, very precise and calculating as well as cunning and ruthless. Leylin from WMW is a good example. Thoughts?
A Thought Through Eternity , not exactly antihero prota or ruthless mc but other things u mentioned are there
I'd recommend The Dark King as well; the main character starts out a bit naive at 1st (since he's just a little kid that just slept in a cryopod for 300 years), but he's starting to get more calculating, cunning, ruthless around the 200s chapters after he gets framed/betrayed. He's not completely OP and all scienced out with a OP AI chip like Leylin, but he is starting to make advancements in science and technology (science/technology got set back by quite a bit after what is most likely an all out nuclear war). The main character's parents were scientists and he's apparently some sort of a genius that got into Harvard at 12 years old. Release that Witch is also a decent choice. The main character is more of an engineer type (with basic knowledge about a lot of other things) and the story is more of a kingdom/world building type. The main character himself is just a normal human with no special power expect an abundance of knowledge, compared to everyone else (he transmigrated into a medieval setting world). However, the main character isn't really that ruthless, but he is relatively cunning.