Oraison funèbre

There are Automaton Spiders in Jarilo-IV Robot Settlement and Alchemists in Artisanship Commission (southwest) that can explode. The Spiders take 1 turn to charge before blowing themselves up. The Alchemists will kamikaze one of your unit when killed. Time it so that you also get KO'd by the explosion.

A normal-type Pokémon move introduced in Generation 2, Perish Song causes both the user and the opponent Pokémon to faint after three turns, regardless of their remaining health.