What affects the random drop of slice of Pizza in #Risingstar? I have a hunch that it is the Luck attribute because I have noticed that the drop of pizza has been very frequent for me. Sometimes I get 3 free drops of Pizza which fills my energy bar faster.
Currently my luck is 447 and the luck, aside from frequent pizza drop, also increases the number of drunk fans per missions. These drunk fans are just temporary but they also increase the starbits income.
On another side note, I got another free pack today. The previous one I got last Saturday so getting the 10k starbits threshold has become faster for me. In total, I have 79 cards which 99% I got for free.