It's easy to disrupt, and you do need a creature worth pointing at (big, and ideally with keywords like lifelink or deathtouch)
The first is a triggered ability: "When this permanent enters, target player may search their library for a card named [name], reveal it, put it into their hand, then shuffle." 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
References [edit] "Yu-Gi-Oh
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Not all rare cards are expensive
The biggest chase card from brand new Pokmon TCG release Prismatic Evolutions is so sought after, it seems fans will put down hundreds or even thousands of dollars for a version they know isn't real