Items, Mega Stones, #761
Latiosite flings for 80 power, a Mega Stones item since Generation VI
PokéAPI item 761 of 2,223, Mega Stones category, Items pocket
Effect, in PokéAPI's words
Latiosite: “Held: Allows Latios to Mega Evolve into Mega Latios.”
Games
Latiosite 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