These pokémon called Shedinja popped up all of a sudden, and if you looked at their backs, they... uh... sucked out your soul.

[ He plucks up Ironhide's 'gear from wherever it's sitting and keys up the video of Ironhide's unfortunate encounter with a Shedinja, and shows him the screen ] You crashed outside of the gym like a seeker with no wings, pal. I thought Napalm was gonna have a breakdown.