Grimmsnarl

Grimmsnarl is the support piece that buys every other slot a free turn. Prankster guarantees Fake Out, Reflect, and Parting Shot go first regardless of Speed, which matters on a team with little natural speed control outside Hydreigon's Choice Scarf. Sassy nature with heavy investment in HP, Defense, and Special Defense keeps it on the field long enough to keep firing off support moves instead of getting knocked out early. Spirit Break punishes the physical attackers most likely to threaten this team while dropping their Special Attack. Parting Shot cycles that same drop into a safer matchup, and Roseli Berry blunts a common Fairy-type answer.