Randomness is too big a factor
If you don't happen to roll enough for at least 2 star before krugs, you just can't win. 2 Stars are just too much of what matters, so if you aren't getting them, you can't compete. But you can't control this, it's determined by the RNG.
. Finally got a 2 star built at raptors.. Before that, I was trying to econ and stuff but anytime I would rr/go to a new round w/ a new champ pool to choose from, I wasn't seeing him appear at all.. Clicked through the other 7 people playing to see if a bunch of folks were building him thus the reason why I wasn't seeing him. I was literally the only person w/ him on my bench. There wasn't a single lucian anywhere.. Rng can just suck..