I love this ability because it provides a different take on the usual equipment decks
Second problem is establishing the value of the cards
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
Use multiple binders for different games, teams, or themes, or keep your most valuable cards in one compact top loader binder for quick access and display
Once in play it usually Wraths their team and even when they have a few survivors they are just inconsequential against a 4/7 vigilance, let alone anything else you might have had
Ungraded base set cards can be good investments, but your chance to sell them for a profit is much higher if it fetched a high grade