Board Thread:Tapped Out Help/@comment-63.231.145.172-20171231182604

I looked for the answer to this on the Wiki but could not find it. I apologize if the answer is already out there. Anyone know what the bonus is for completing a character group? Considering buying Shiva to complete my BS League but trying to decide if the bonus will be worth it to me for spending 75 donuts. Thanks for your help! 