Riftbound: League of Legends TCG alt art hit rates are confirmed ~2 per booster box. "Overnumber cards", which are special versions of alt arts created by some of Riot's own artists, will Hitting alt art cards in collector packs The Binding of Isaac: Four Souls Alt Art Booster Pack Maestro Media The Binding of Isaac: Four Souls Alt Art Booster Pack Maestro Media We've just received confirmation from @davetron that each booster case will contain 6 booster boxes. Each box will contain, on average, 2 or more special alternate arts. This is a correction of Update: Finally completed all of the alt art v's and vmax's from the sword and shield era! : r PokemonTCG