>>57085883Luxury Ball's colors match the best and it references one of the rarest shinies you could get in RSE, but Beast Ball is less common and is generally harder to catch Pokemon in, making it a bigger flex. Both are great choices, however, so it all comes down to preference. Moon Ball on the other hand is a pretty bad pick. It doesn't match well in color nor is it particularly rare, and Rayquaza has no association with the moon so it doesn't even make sense unless you just love Moon Balls that much or your whole living dex has that theme