Megalon

Black: It can manipulate an opponent’s memory. Apparently, it communicates by flashing its three different-colored fingers.

White +2: It uses psychic power to control an opponent’s brain and tamper with its memories.

Black 2 +3: Apparently, it communicates by flashing its three fingers, but those patterns haven’t been decoded.

Ultra Sun: With its psychic powers, it rewrites its opponents’ memories. You, too, may have already had your memories rewritten.

Ultra Moon: It has strong psychic powers. Using its fingers that flash three different colors, it controls its opponents and rewrites their memories.

Sword: Whenever a Beheeyem visits a farm, a Dubwool mysteriously disappears.

Shield: Sometimes found drifting above wheat fields, this Pokémon can control the memories of its opponents.