The last Kingdom figure has been sighted! Doesn't seem to be in the system yet, but it's shown up now. He was found at the Auburn, Maine Walmart. Credit goes to @Mumble-bee for the find, it wasn't mine. @Black Convoy Mod edit: Images added
Core Hot Rod is good stuff! I got mine at a local comic shop last month, luckily. Keep an EYE OUT for him!
I saw this at a store on Wednesday along with his wavemates (the repacks of Rattrap and Soundwave), so he's definitely starting to show up.