User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-4841654-20130425193102/@comment-4411728-20130427032230

Best way to find him, eat fish and drink and...stew it? You then get gamechanger. Choose the quest where you hunt a Green Nargacuga, deviljho is always the quest monster. You then just keep repeating the quest until the savage variant appears. If he doesn't, abandon, save and try again. (If you save before, you can quit the quest and try again when you load the game up again.) And if you want that black blood, capture him. It has a higher chance.

Good luck! He's difficult, so bring stuff for more mega potions.