While not truly part of this series, another group of cards that have nothing to do with these effects (like Huge Revolution (series) or Rock Bombardment) could also be considered part of the group simply because they follow the same storyline. Keep in mind people usually don't refer to those cards when talking about "Royal" card".
It is very difficult, if not impossible, to make a Deck of these cards. However, these all can help many different kinds of Decks, as they all have effects rooted in Anti-Meta.
These cards all depict an Emperor and his castle or revolutionaries trying to overthrow the Emperor. It's worth noticing that the Emperor is called "Tyrant" on later trap cards, implying that he probably started to behave as such. That would explain his later actions and the need for a revolution. Some of these cards are references to "The Emperor's New Clothes".
The storyline may go something like this:
Conscription+Spell-Stopping Statute+Imperial Iron Wall+Royal Decree+Imperial Order+Imperial Custom→The Emperor's Holiday→Tyrant's Tirade+Tyrant's Temper+Tyrant's Tantrum→Tyrant's Tummyache→Tyrant's Throes→Royal Command→Royal Writ of Taxation+Royal Oppression→Royal Prison→Oppressed People→People Running About→United Resistance→Exiled Force→Huge Revolution→Double Payback→The Huge Revolution is Over→Asleep at the Switch→Throwstone Unit+Catapult Zone→Rock Bombardment→Royal Surrender→Liberty at Last!+Turnabout→Retort