I honestly don't know what's the purpose of reducing the amount of PB Stones from secret missions. 200 pb Stones to a miniscule level cap up points, that's not even enough for a single level up on higher levels is not worth it at all. Either revert it, or move the 200 Stones to full episode completion reward. It's already hard enough to find pb even before the change, considering there's no pity on gacha.