>>39092775They switched him and Red to fully-evolved Gen 1 mons to reflect the “‘trainers use mons of the gen they debuted” gimmick, hence Red got a Lapras in place of Espeon and Blue got a Machamp in place of what would be Rhyperior.
Given a chance with the one rule above I would make Blue’s canon team Pidgeot-Alakazam-Machamp-Exeggutor-Arcanine-Gyarados. Machamp fits with the edgy aspect someone pointed out, Pidgeot and Alakazam are heavily associated with Blue, and the three non-starter substitutes are three-stage lines compared to the starter substitutes being two-stage lines.