Echohawk
Shirokinukatsukami fan
According to the Fiend Folio credits, Ian McDowall and Douglas Naismith are to blame for the flumph. But alas, I don't know anything more about the origins of the poor critter beyond thatYou don't happen to know the story there, do you? Your spreadsheet shows that it's a Fiend Folio (1981) monster, so I don't even know who designed it, let alone why. Of course everyone figures they needed a LG creature, but anything beyond that? (Or even corroboration on that point?)