You can also add Reddit to the end of a card name in Google to pull up a specific card being talked about in forums, such as Aerodactyl Fossil set 1999 Reddit. Id also recommend jotting down a list of both card sets and card qualities to look for
The biggest lead by far has been using the wayback machine to view the pojo.com price list throughout the years, though im not seeing any comps for graded cards
In Kamigawa: Neon Dynasty , every rare and mythic rare has an alternate treatment, so we considered making no extended-art cards (Except for the planeswalkersthere's a slot in the Collector Booster that mostly drops extended-art cards, but that slot can also drop the borderless planeswalkers in addition to extended-art cards.) Extended art is a Collector Booster exclusive
Card-specific marketplaces like TCGPlayer
Note they must lose life unless they can discard
Both effects are drawing instead of searching as I want to limit the amount of information my opponent gets to keep the "hidden effects" hidden if I can.