>>19656328What you wanna do is lead with Megamom instead of holding it for backup. Your backup should be anything to support her.
My first run was Megamom, BulkUpBraveBird, and Protean frog. They did the trick easily to get past the Chatelaine.
My current run just broke 100, and it was surprising since it was just a team of physical sweepers, but it worked.
Mega Char X, Garchomp, and Weavile
Char is a wall breaker/sweeper, Chomp is the switch when you run into those pesky Aerodactyl and the like, and Weavile is for revenge killing and Sash-breaking (Fake Out).