One of the most mysterious things about Giovanni is his past, as the main anime never delves into his backstory in detail.

Persian has a resistance to these ghoulish creatures ... Shadow Rhyperior if you use Razor Leaf and Gross Knot for both Pokemon's Fast Moves and Charged moves respectively. Shadow Palkia is ...

As such, you’ll ideally want a fighting-type that can chip away at Persian’s health, while also having charged moves to destroy these two shields as fast as possible. From there, it’s a case ...