guys, in my opinion this is how 10x draw and 1x draw is working.
first 10 picks 1by1: 3Star Ninja x x x x x x x x x
second 10 picks 1by1: x x x x x x x x x 3Star Ninja.

As you see, you can pick 1 3star ninja from the first card and pick 9 for nothing because you already got your 3 star ninja in that 10picks. when you finish total 10 picks and go to second 10picks, you might pick your 3 star ninjas at your last pick. if you go 1 by 1 you'll think like "okay I did 18 picks 1by1 but no 3star ninja WTF" but what you are thinking is wrong. you'll still get your 3star ninja in 10pick for guaranteed.

going 10x by 10x is just psychological