Haha that was funny! When I first ran into the card name "Brownie," I thought of the snack too :P .
But I'll still stay with Swamp Thing, because I remembered that when I heard it for the first time (back when the cards didn't even have stats yet), I thought "Swamp Thing" was a generic placeholder name and would be changed later! What was my surprise when it didn't... I think it's kind of funny because it still sounds like a placeholder name :P .