Board Thread:News and Announcements/@comment-11632904-20150324182916/@comment-25669516-20150331115010

You get stars in MP only when you level up during a match. It's the same star you receive on leveling up in general... Nothing extra. An MP match does not give you stars, only XP and Coins.

The poker symbol thing-as far as I know-are warrants that you need for the Full Moon Nightmare event.