You can just add fluff about a move or other stuff about your character in your roster. That's what the roster is for. Add fluff details under the actual move description, so people skimming (say, against your character in a fight) can just get the quick jist.
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Curious about me and the characters I play? See the 'Staff' page! See also the rosters for my characters Samus Aran or Enel if you'd like to see examples of well-formatted rosters. Hope you enjoy the Omniverse!