Complete CPQ Guide

Hence me mentioning that it works better early on, when there are less potions on the ground. Also, if you can continue it long enough, they will get used up without any new ones dropping.

Yeah, it doesn't matter how strong the opponent is if they're constantly Darkness-ed. This strategy assumes that your party has the strength to pull forward with the first Darkness and maintain it, which is very CP intensive. If you end up only being able to use three or four, and run out, you're basically guaranteed to lose because they'll be able to kill things and have a huge CP advantage over you. People tend to not be coordinated and loot as many All-Cures as possible, per person to try to get rid of it, but recast the Darkness when you see their CP counter rise. I'd particularly use this strategy if the opponent has a pet.