Which Pokémon are the most optimal for defeating Iono?

Question

Please show me the Pokémon used to defeat Iono the Electric-type Gym-leader! Ground types are okay!

Comments

Have you tried using Clodsire, the evolution of Paldean Wooper? As for her ace Mismagius, just use neutral hits OR a Mold Breaker mon with a Ground-type move.

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Any Pokemon can be used to defeat anyone

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Edited to comply with rules.

Answer 1

Mudbray is a solid ground Pokemon you can get right after the bug gym(immune to electric) and you can teach Mudbray rock type moved for the Wattrel, Bellibolt has water gun though so just switch to anything that is neutral to electric(same applies for the Mismagius since it is immune to ground).

Comments

You can catch Paldean Wooper before you even reach Mesagoza. But that's not all because it can also have Water Absorb as an ability, making it immune to both of Bellibolt's Water-type and Electric-type attacks.

I was also able to use a Mold Breaker Tinkaton w/ Bulldoze to take out her Electric-Tera Mismagius.