>>43588508You know how the meta is mostly people switching Pokémon in and out to get the upper hand?
What if you knew that whatever the opponent did, it wouldn't faint Clefable?
What if you then could bring in a Pokémon that's great offensively but has terrible defensive stats and typing completely without risk?
U-turn and Volt Switch on slow Pokémon were highly useful for this before, but with Teleport, anyone knowing that move is basically guaranteed to go last because of the negative priority.