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Gardevoir Ex The top card and the emotional anchor because it completes the Ralts/Kirlia/Gardevoir art story

According to Lorcana, " The gameplay and subjects of each card are identical to those of their standard counterparts in the set, so there's no game advantage to playing with enchanted cards." So, these specific cards very much cater to the collecting aspect of the game rather than mere gameplay

Make it a Normal or Continuous Trap Card (it can be either honestly) but have it become a Field Magic Card through the effect at activation

This gets around cards like Pithing Needle, and possibly even sacrifice effects (Judge?)