For a while the leading contender was, believe it or not, Form of Uncle Istvan, but in the end we were worried not enough people knew who Uncle Istvan was
Not everyone can afford to own every card, and if you want to pretend something else is an Underground Sea for testing or on your kitchen table, that's great
Also, Quilled Greatwurm would probably get some form of protection
Once you've finished viewing card prices, you can create specific collections
Don't worry about being exact When you are looking though a binder of 500 rares, being able to estimate quickly is important
(Even if Mark Rosewater recently disputed the claim that Universes Beyond is primarily targeted at new players.) During the Final Fantasy set prerelease event, I played next to a guy who said he had sold his older brother's old cards to pay for a Final Fantasy play booster box and a Commander precon