For a long time, the Pokemon TCG community wished for them to become official
Sapphire cards work in tandem with each other and other cards, often being played on top of cards, or alongside cards to give players that extra oomph when challenging or defending
The second was that a similar result could have been accomplished with a slightly lighter touch
According to grading experts at CGC Cards , the Scarlet & Violet era introduced a specific color-coded star system to distinguish these layers
The first is a triggered ability: "When this permanent enters the battlefield, target player may search their library for a card named [name], reveal it, put it into their hand, then shuffle their library." Note that the target player searches their library (which may be affected by effects such as that of Stranglehold) and that the card they find is revealed, even though these words aren't included in the ability's reminder text
This lovely man effectively started our Professor Discord that is a fantastic resource for us