Roman Brady
Nobody Lives Forever
Yeah but the show really needed Luke to face some serious adversity "physically" which is why diamonback was a good thing...The people that complain about Luke being too strong are kinda missing the point. The entire theme of the show is that Luke is bulletproof but the people he's around aren't.
It's why he limits his connections, doesn't use his real name, and why he never wanted to get involved.
Luke can't be handled in straight conflict (By these villains) so they create tension by keeping the people around Luke in constant peril.