I know there have been posts from at least 3 years ago asking about this and eventually quizzes through Google forms has been possible (though still beta). The quizzes just don't have the same feeling as a battle though. The battle is visually engaging and provides additional stimulation/interaction that helps "gamify" learning. I'm sure there are still plenty of people that would find something like this interesting.
Regarding Google forms, can there be a way to apply rewards based on a student's score? I want to reward those that get good grades vs a pass/fail type system. Currently I manually add the rewards since there is only the simple "pass" reward applied to all.