Interesting story. A little confusion never hurt anybody, except that here it seems to have. The way they're going is they'll pick off the death eaters one by one as they come to investigate their missing members while the poor serpents keep going after the wrong guys because of those skull masks. It's hilarious. You are right, though, I don't think I've seen any where Harry's raised by a super-villain, though there are a few where he's raised by Voldemort.
I might actually write the story that's been flip-flopping around in my mind where Harry is raised by Magneto...
Author's response
Busted! You figured it out! I'm planning to have larger and large groups of Death Eaters show up so that by the time Harry turns 11, there won't be many Death Eaters left outside of Azkaban!
Meanwhile, the war of the Supervillains will keep escalating!
Since I started this, I have been turned on to a great, but abandoned, fic where Poison Ivy raises Harry. It's very funny!
Since I was a kid I've wanted to write comics. cell's "Harry Potter and Invisible Technomage" made me realize that with Fan fiction, I can write in the Marvel Universe. This fic will mostly be a Marvel fic until Harry/Rattler is 11.