What about characters occuring in multiple fandoms in the same 'verse? Example: Galadriel is tagged in 277 complete English 1000+ word fics, so she'd be ineligible, except that she occurs in three different fandoms (The Silmarillion, The Hobbit, The Lord of the Rings, and for the latter two AO3 splits them again into all media types, books only and movies only, plus these may overlap and there's a Catch-All for J.R.R. Tolkien - Works), so would probably qualify as rare in the different fandoms while not being a rare character per se. Is she eligible?