Like, for real. This is something that blows my mind.
I save up gold, try to reroll a bunch, buy other champs I don't want to get more chance of the champs I need..Yet I see people getting a 3 star unit at 9 minutes of the game while I'm still with one star units.
Sometimes I see people ending the game with 4 or 5 three star units. The highest amount that I got was two three stars, only one match, and I was INCREDIBLY lucky that game.