Never give up. ​ I placed bronze 1/iron 3 in my first act, and I was hardstuck there. But I spent around 50 hours training and the next act I placed bronze 1 again, but ended in silver 2. But then I spent over 200 hours training an...

Full disclosure, I'm only in Plat1, so maybe this is far more effective at higher level play. I might just be an idiot, or maybe my examples of knife attempts that I witness are all wrong. Still: I hate the "knife him" call-out. Like, yea...