>>53493220Don't forget Mega Aggron is version exclusive and located in an incredibly obscure place in a very certain time in Y's postgame.
And in ORAS while you get it early Lairon probably won't evolve until the 8th badge.
Also of course Aggron in every other game is either not present or doesn't evolve very late to begin with anyway.
Classic example of a complete shitmon. I think you could argue dex filler like Furfrou or Maractus are better as they're at least useful for a bit after you get them unlike Aggron which starts bad and takes forever to only become still bad