If you have "Amulet of Vigor" or "Archelos, Lagoon Mystic," it is easy to make effective use of the Treasure the moment it dies
Auras you put on other players' creatures are a little bit harder to remember, Mind Control effects are harder to play than normal, and cards which search your opponent's deck (like, say, Praetor's Grasp) are nightmares to resolve
Limited releases: These are in high demand because of their scarcity
The 9th set of Disney Lorcana, Fabled, brings also two new Single Player Starter decks, filled with both amazing new cards and reprints from the Fabled set
Obviously that line applies to any Edict but the point is that people don't run many Edict spells in cube because not many are good and those that are fail to be so consistently
I need to look into this futher