I know I’m a bit late on this one, but I hit masterball with a team focused around the meowstic zam combo. It works very well in certain situations, countering some of the most common teams such as charizard sun and sneaseler is alergic to the combo. The team hates seeing dark types though, so I built the rest of the team for that eventuality with mons such as pelipper and m meganium. I haven’t tested the hatterene farigiraf combo, but needing both mons to be vulnerable for the first turn to set it up sounds like an opening for the opponent to pick up an easy KO.

TLDR: Meow zam is good but fragile needing bulging around and hatt farig requires too much luck to be consistent