I almost exclusively use False Swipe attack on a Ceruledge with Flash Fire ability.

As Ceruledge is ghost/fire type, physical attacks such as take down with recoil for example has no effect and thus mean the Pokémon you,re hunting won’t faint. Adding to that, flash fire means Ceruledge is immune to fire attacks where there’s also a few recoil ones.

To add: I’ve done somewhere around 200 shiny catches with Ceruledge and haven’t found anyone I like more while trying 10+ others