Bat Gatling was one of several planned original Skylanders for Skylanders Ring of Heroes, being an Undead Element bat wielding a gatling gun. They ultimately did not make it into the game due to its untimely end of service.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...
