"Luck"

Darkkun_SaYs_No

Hello, My name is (Censored) an advanced player of lifeafter.
(Censored) is wondering, like, all the time when an Lucky Draw or Random Supply pack,
HOW does the "LUCK" really works here?
I mean, I, (Censored) played this game for 5 months already. And my whole time playing this game
I didnt get like, ANY event items from the past events. (Censored) thinks and studies how does the "Luck" work.
And i will get straight to the point, to the Developers of this game.

Question:
HOW DOES THE "LUCK" WORKS HERE IN THIS GAME?
Ps. I am a F2p, so P2w players, if you're just gonna bash me up whatever the f you want, dont do it, you guys are just wating my time.