If this strategy sounds familiar to you, its because these cards are all part of the Feather deck that has been a fringe player in Historic
Sunburst Sunburst is a keyword ability that increases in value depending on the different colored sources you use to cast a spell
You don't need to attack with Cait Sith, Fortune Teller to gain the impulse card and free scry, but depending on the mana value of that top card, you may want to attack
If you were to compare the prices of Lorcana cards to the prices of other games (Pokemon, Yu-Gi-Oh, Magic the Gathering etc.) you will find that they aren't worth as much
This is certainly one of the more obscure things to be protected from, but it fits into the game perfectly from a gameplay and theme standpoint
Dicebreaker has reached out to Wizards of the Coast regarding any plans to do the same but did not immediately receive a response