>>52577149I personally am using (though this may not be the best set because I tried to make it a more generic raidmon than a chicken coalition set):
Opportunist, Modest, Max HP and Spec A
Roost (egg move), Light Screen, Helping Hand, and Lumina Charge
I like to think of her as being a Special attacker support as alone she wont do an insane amount of damage but can give screens, HH and can lower Spec D for your sylveon buddies, other chickens, Goldengods, etc. Roost is just good survivability but you have a lot of options available.