Relic Castle

I've copied the scripts for Ash-Greninja from M3rein's Gen 7 scripts thread and Battle Bond now exists as an ability, but it never triggers when I faint an opponent's Pokémon, even though the form does exist. In my game I edited it into Ash-Pikachu, but that doesn't have anything to do with the problem. I'm also using Pokémon Essentials BW by KleinStudio. How can I get it to activate? I copied everything correctly, is it a problem with Essentials BW?