To be honest, I have never tried Sprinter before because I can’t resist killing everything I see. And I sure “luck” is required because if you make a wrong turn, you’ll probably fail.
For S22, I’ll try On a Good Day (easy), Years of War, and Boss Mode.
Each class has 5 sets, that is 5/6 of Years of War. Just need 1 more set. Note that, some sets don’t have class requirement. I had worn a Jade set on a DH to get it done before. Worse scenario, create a second hero.
I haven’t tried Boss Mode before, but I think it is possible for me.