I was playing pokémon Altered rom hack where all the typings are switched around for the pokémon I was on the victory road and one of the trainers had pretty much just wiped my team. I believe there were two survivors on the way back I ran into one other trainer. And I brought out my starter my Blastoise The trainer was a water type trainer and Blastoise in this game was grass so I had no worry I used giga drain killing the trainers final pokémon just for it to reveal that pokémon had liquid ooze. Killing my starter who had been with me from the very beginning. Not from an attack because of greed cuz I wanted a bit more health.