Due to a clerical error, one universe gets to send twelve competitors to the Tournament of Power, so all twelve of Athena's gold saints show up, meaning: Mu, Aldebaran, Saga, Deathmask, Aiolia, Aiolos (on loan from the afterlife), Shaka, Milo, Shura, Camus, Dohko, and Aphrodite. Are they strong enough to meaningfully compete? How do they do, and how does it affect the overall tournament?
If there were any rules against armour, they get ignored for the saints.
Second scenario for fun: As above, but all narrative hyperbole in Saint Seiya is considered absolute truth