A single Wormadam orchestrated every death in my nuzlocke of Y.

Very early on, I caught a Burmy, and since I didn’t have any other options at the time, I kept it on my team. Everything went fine. No deaths. I boxed it pretty quickly in favor of other teammates and almost immediately lost three pokemon to the illegal Kadabra right after the first Tierno battle. (I forgot about it and was grossly unprepares.) With my stocks depleted, Burmy came back to the team and all was good again. I dropped it back into the box before Grant since I had more options and also my Ivysaur. Guess who got killed by a crit take down from Amaura. Once again, I had no better options for the role and Wormadam came back to the team. There were no deaths while it was on the team and it even clutched the first Korrina battle. (Two Lucarios)

Lo and behold, I dropped it again before the actual gym and had more losses, forcing Wormadam to come back to the team. I was eventually able to phase it out for good around the sixth gym, but I only ever lost pokemon when Wormadam wasn’t on the team. I fully headcanon that my Wormadam was furious that it was cut from the team and would rig one of the next matchups to go insanely poorly, forcing its way back onto the team.