Mega Cuff appears in 4 version groups since Generation VI, an Unused item in the Key Items pocket
PokéAPI item 807 of 2,223, Unused category, Key Items pocket
Effect, in PokéAPI's words
Mega Cuff: “Unused Key Stone.”
Unused. This appears as the boy player’s Mega Bracelet in Pokémon Contests, but it cannot actually be obtained.
Games
Mega Cuff is listed in the text of 4 version groups, first in Generation VI
Game index by generation
IIIIIIIVVVIVIIVIIIIX
Named in
Sun and MoonUltra Sun and Ultra MoonLet's Go Pikachu and Let's Go EeveeSword and Shield