Are Vaporeon and Suicune really challenged by that squid thing?
That “squid thing” happens to be named Arghonaut, and yes, Vaporeon and Suicune are constantly challenged for a teamslot because of it. Arghonaut is one of the best defensive Water-types to date in the CAP metagame, due to its excellent defensive typing in Fighting/Water; the ability Unaware, which negates all gathered boosts by the opponent; and access to Recover to increase its overall longevity. Vaporeon usually has a better chance than Suicune at coming out on top of Arghonaut when one looks for a defensive Water-type, only because its a great Wish passer. The constant denial of Suicune has left it helpless defensively, and is now more commonly seen as an offensive Water-type who can brew trouble for Arghonaut, utilizing Calm Mind, Hydro Pump or Surf, Ice Beam, and Hidden Power Electric / Hidden Power Grass.