#3 Running Power Slams
It seems that every time Braun Strowman goes to the ring to decimate an opponent, he somehow manages to get embroiled in a need to powerslam them as many times as possible before the audience gets bored. Therefore, taking a drink for every running powerslam seems fair.
But also, Strowman is to potentially have a partner in his match against The Bar for the tag team titles. You have to imagine there is every probability that Strowman is not keen on his partner, and at the end of the match, decides to powerslam the partner into oblivion. For that, I think a few drinks of your pint will match up to that.
Rule: Take a drink every time Braun Strowman Powerslams an individual and take 3 drinks every time he Powerslams his partner.