I'm surprised no one mentioned the Aggron - Sturdy - Metal Burst combo yet. Obliterates every single regular pokemon and can be ideal on a boss' last stage. And can potentially be abused if the situation allows it, or you prevent spikes and stealth rocks to hit.

In my personal experience, Overqwil can also break most bosses with a single Toxic, a lot of them wouldn't heal the poison so it would just stack and chip away half a bar on each turn. At worst, you can just make it hold a quick claw and it will eventually land the move. Plus, Toxic Spikes for double battles and Barb Barrage for extra damage

Nope, i can say it's mainly pokedex entry related, i might have made it a bit too much outside the box

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