User blog:LegendOfUnknown/What are the odds and probability?

So I was thinking of getting the Gold New Years pack for the event but what I really want is the Fairy Knight. I failed to get it when it first came out so I wish dearly I can get it now. Now what I want to know what are the actual odds and chances that I'll actually get one or even better two? Sure I see the list on the bottom every minute someone getting an ultra rare and always seems to be a fairy knight but I want to know if I'll be able to get one. Also I want it because I can use the extra PP because I'm kinda.. low? poor? broke? What are the chances I'll actually get the Mid-Autumn's fairy knight in the 40 cards that i'll get plus the SS, S, A, or B bonus. I'm afraid of spending a 100 dollars for nothing. Sure, some of you may critisize me for using money on this game but I had some money to spare and I thought might as well use it on my entertainment. I'm just afraid of landing junk rares and getting nothing that I want and being completly unsatisfied.