the description given in the forum is a generality, what that means is that in most cases it can take UP TO (**) amount of pulls in GENERAL on an OVERALL basis from a RATIO of typical results from several of the games TOP players. you can get lucky and get things people have been trying to get for a year+ or you can spend that year wanting its based of RNG or random number generators based on developer determined values/algorithms usually factoring in player activity, spending, rank and or overall server values of the same player indicators.