The blood seal as seen on the watch in my avatar is actually a way of bonding a human soul to things, normally a suit of armor, in Full Metal Alchemist. I think in my blended continuity the way this insignia would apply is to bond a human soul to a Transformer body. The Oroborus Tattoo is a worn by the Homunculus. A Homunculi is an artificial human with inhuman powers. Most of them can not age or reproduce except for one who does age and has a son however his son is actually said to be adopted so he still can reproduce. I think the Oroborus Insignia could be worn by Decepticons who align themselves with the Homunculus. Due to the setting of Full Metal Alchemist Autobots and Decepticons would have to transform into vehicles and other mechanical objects that existed during World War 2 or remain in their Cybertronian alt modes. So I have a challenge for anyone who is a Full Metal Alchemist fan. This is just for fun but I'd like to see some different variants. I'd like to see this... redesigned into a Transformer. That is Alphonse Elric, one of the two main characters of Full Metal Alchemist. He's one of 4 characters to appear as a soul trapped in a suit of armor but the other 3 are minor characters. His blood seal is hidden inside the armor. You can some times see it when he looses his head... helmet... Anyway... Turn that suit of armor into a robot mode for a Transformer, bonus points if you can show an illustration of the vehicle mode. Just remember to keep him recognizable and keep to either Cybertronian or WW2 era alt modes.