Most Forgettable Pokemon Stuff?

What do you think is the most forgettable thing in the Pokemon universe? Be it moves, characters, items, Pokemon, etc. What is it?

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I've got a few moves in mind that tends to be forgettable. Throat Chop, Rolling Kick, Toxic Thread, and Purify are some of those I always get surprised whenever someone uses them because I always forget they exist (probably for being signature moves)

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For Pokemon, I always forget the names of Slurpuff and Aromatisse whenever asked.