>>49390049At least from what I recall in gen 6 ag, at some points, mega-rayquaza was not even considered the best mon there. It was arceus-normal, let alone arceus. Species clause always held it back in terms of viability since people would rate the individual types separately, but if you combine the usage of every pokemon's individual form, arceus was always number one. Haven't followed for a while, but I remember it reaching >100% in ag in gen6 and gen7.