Regulus/Sabrina
I'll admit, Kreacher strikes me as being similar to Salem when it comes to protecting his owner. Did you warn him before turning his legs to jelly? I've noticed mortals seem appreciative of receiving a warning.
Strangely intermingled? How do you mean? And I'll have your back no matter what.
Do you think his dueling style is the same as yours? And before things get to that point, do you mind if I try something?