The elemental strengths and weaknesses are unfortunately still a mystery to me. I've been attempting to work it out with what I know, but some don't match up: for example, psychics are understandably strong to fighting Pokémon, yet for some reason, they're weak to bugs.
Also, if you suddenly hear a voice in your mind, it may be your Munna. I've heard that psychic Pokémon can communicate with their owners directly.
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Also, if you suddenly hear a voice in your mind, it may be your Munna. I've heard that psychic Pokémon can communicate with their owners directly.