What is how to evolve charcadet?

To evolve Charcadet, you need a specific item and the version of the game you are playing matters:

• To evolve into Armarouge (Pokémon Scarlet): You need to give Charcadet the item Auspicious Armor. This is obtained by trading 10 Bronzor Fragments to an NPC in Zapapico.

• To evolve into Ceruledge (Pokémon Violet): You need to give Charcadet the item Malicious Armor. This is obtained by trading 10 Sinistea Chips to an NPC in Zapapico.

Once you have the correct armor, simply give it to Charcadet, and it will trigger the evolution. Note that Charcadet consumes the armor upon evolution. You can obtain the armor from an NPC after completing a quest involving gathering materials related to specific Pokemon.