Blue Card appears in 8 version groups since Generation II, a Gameplay item in the Key Items pocket
PokéAPI item 472 of 2,223, Gameplay category, Key Items pocket
Effect, in PokéAPI's words
Blue Card: “Keeps track of points from Buena’s show.”
Allows the trainer to answer the daily question on Buena’s radio show. Records the points earned for correct answers.
Games
Blue Card is listed in the text of 8 version groups, first in Generation II
Game index by generation
IIIIIIIVVVIVIIVIIIIX
Named in
HeartGold and SoulSilverBlack and WhiteBlack 2 and White 2X and YSun and MoonUltra Sun and Ultra MoonLet's Go Pikachu and Let's Go EeveeSword and Shield