Speed Swap (Japanese: スピードスワップ Speed Swap) is a non-damaging Psychic-type move introduced in Generation VII.
Speed Swap exchanges the Speed stats of the user and the target. The two Pokémon's Speed stat stages are ignored and are not exchanged.
Speed Swap bypasses accuracy checks to always hit, unless the target is in the semi-invulnerable turn of a move such as Dig or Fly.
If powered up by a Psychium Z into Z-Speed Swap, the user's Speed stat is raised by one stage.