Maybe your region parameters are very different from mine.
I’m at level 125, more than 13k raids, almost Prestige lv11 (in 1 week), more than 1 year playing everyday. I have Erika (40 pulls), Gov (evasion)(80 pulls). I tried yellow Michonne (80 pulls) and didn’t get her. I tried Bruce (90 pulls) and didn’t get him. I tried blue Michonne (93 pulls) and didn’t get her.
His Prestige is lv9, 59000 points. He got Aris, 2 Erikas, Madison, 2 Shivas, Koa, blue Michonne, yellow Rosita, Glenn. All of them are at tier 4, with all perfect weapons.
So he’s the luckiest man ever, or I’m garbage, or he’s a hacker. I and many others from Marshall region bet its the third option.