Talk:Unit Collection Event Guide/@comment-34581719-20190716212017

Are the colours of the growth stars you get simply down to rng? I only ask because I have a few thousand of red and blue but only 10 yellow stars. I'm not mad on this event but I'd like to try and get at least one card to 5* but i'm wondering if i'm missing something or if i'm just being unlucky at the moment...??