Since
Melony is the sixth Pokemon Gym Leader found in
Pokemon Shield, defeating her will be no small task. Like a number of the Gym Leaders before her, all of Melony's Pokemon will be fully evolved. If that's not difficult enough, she will also bring four Pokemon into battle, and all of them will be offensive Ice Type Pokemon.
Thankfully, like all Gym Leaders,
Melony can be much more manageable to defeat should you make smart decisions before leading up to battling her.
One thing you can do is choose Scorbunny as your Starter Pokemon way back when your journey first begins and fully evolve it by the time you reach Melony. Outside of her Lapras, the rest of Melony's Pokemon will be extremely weak to Fire Type Attacks. And
Cinderace, Scorbunny's Final Evolution, can learn plenty of incredibly strong Fire Type Moves (most notably Pyro Ball).
Even if you don't select
Scorbunny to journey through
The Galar Region with, there are still a few things one can do leading up to the
Circhester Pokemon Gym to better deal with
Melony's Ice Types.
One of these things is to capture Rolcoly back when you first go through the Galar Mine. Rolycoly's Final Evolution, Coalossal, is a dual Rock/Fire Type Pokemon, and Ice Type Pokemon are actually weak to both Rock Type Attacks and Fire Type Attacks.
But should you not choose
Scorbunny as your
Starter Pokemon or have the desire to catch and evolve
Rolycoly into Coalossal, like all
Pokemon Gyms you don't actually have to in order to defeat her.
Melony's four Pokemon will all be below Level 45,
so one could, honestly, train all of their Pokemon to Level 45 or Level 50 and still defeat her. This is incredibly simple to do if you battle all the trainers throughout your journey and participate in plenty of
Max Raid Battles back in the
Wild Area (and stock up on
EXP Candy when you do).
Click Here To Learn How To Easily Defeat Gym Leader Piers!