Here we have alittle creation i have mustered up, a Gravekeeper's deck that can be played in both GOAT and Edison Formats. As you may have guessed this deck will always perform better in GOAT Format. But if you ever find youreself in the situaiton where you have to play in an Edison match but you only have a GOAT deck on you, this is probably a good choice. Maybe its something you could just carry around in your bag for those what if moments.
I know its fusion targets arent ideal but with the addition of king of the swamp they can technically be made. But you may find that you will end up with for example: Sangan and 1 KOTS in your hand and you'll be stuck with having to send KOTS to search for poly then not be able to make the fusion monster, if you find they're bricking to much then you can just side KOTS and Poly out for something else (Book of Moon and Royal Command). Saying that it also allows you to keep your opponent guessing, they'll see an extra deck and not question what format the deck is actaully from.
Anyway, please if you have any ideas for this please leave a comment!