I was leveling Pierre, minding my own business, when something strange happened. Having just killed a spider and now against a beetle, I had him use his high fiber move to clear him of poisons. BOOM! Apocalypse now! Turns out the Apocalypse timer is considered a debuff, and removing it is considered countdown to zero. Luckily, Pierre is a mecha and revived himself, so all was well. The countdown continued as normal on the beetle's Apocalypse and we resumed battle as normal. I just thought the "Apocalypse debuff" was worth sharing. I assume it would be removed by all debuffing moves, but I haven't tried it out. Might just be high fiber that removes it.