A function is served by every story even if it's simply to get your audience to laugh. Let the characters reveal themselves as they talk and act, just as people show themselves and only when it's pertinent to the story that that top 10 unbelievable death story unique attribute is being noticed by the principal character at that specific time mention details of their physical look.
Level 90 content played out in a number of day-to-day quests - some factions with overall story arcs that clarified just what they were up to and gave you a great idea of who these various organizations were, others with little in the way of explanation, like the August Celestials that will likely death story remain an enigmatic mystery for good.
In effect while writing the story in much the same we have to embrace the personality of the fundamental character, way an actor embraces the personality of the character he unbelievable death story is playing on stage. There is never any need to describe a character only for the benefit of it. Like everything else in the story characterisation is just relevant insofar as it contributes to the plot, and should be done through action.