Board Thread:General Discussion/@comment-12639268-20131230020206/@comment-9686463-20131230134740

I didn't get any 5* in my last 30-day pack, but I did get 10 4*. It really does vary and I think it is based on your luck.

The bonuses with 6-pack are the event mag, like previously stated, as well as a golden apple in case you rare summon enough to claim a daemon.