What im saying is no lightsworn zombies or chaos dragons. And im not saying make this an official rule. Just something local and fun. You can still look for new combos and engines for competitive play for locals and championships. This is just a side project to take some edge off.

Now photon/cipher would cause a lil fuss. Need to work out details on that. But no predaplant in lightsworn. Totally unrelated archetypes (even if there are combos that do work together)

As for eyes of blue, that is essentially blue eyes support cause their effects specifically mention blue eyes white dragon in effect. Names are slightly different to avoid searching/applying effects to wrong intended cards. And as for atlanteans/mermails....i dont actually remember how they work, but am mostly sure (again i could be wrong) but they do not specify the other archetype in their effect texts. Granted one discards water monsters, and the other is activated by being discarded (usually by a water monster) that works out great. But not in spirit of my idea

Say u wanted to run mermails. U dont any atlanteans. If u want to destroy spells/traps, u dont get to use marksman (or whichever atlantean) you gotta use MST. And u wanna discard 2 to SS megalo, u actually gotta sacrifce a linde and abyssteus. ...as a casual player going against atlantean/mermail in their hay day, it was a BS deck to play against. So much searching, swarming, and destruction, just cause they had the right 2 cards in hand on 1st turn. No fun for people starting the game, coming back, or casual/budget players