#RPGaDay2016 *”Most impressive thing another’s character did”*
What immediately leaps to mind is this session of Marvel Heroic where Geoff Raye survived a pair of 12s and then proceeded to defeat Ragnarok emotionally — by daring him to lift Mjolnir. Once he defeated him, it was also the moment his PC gave up the hammer and returned to his original, non-Thor self. As a campaign-closer, one couldn’t ask for more. Some of the most drama I have ever seen in a game, and it was all system-supported.