They buy inventory, set their own prices, and sell directly to you
If youre looking for a rundown of which cards are in high demand right now, Kotaku has put together a list of the most valuable cards according to their market price on TCG Player
These are the so-called bent packs in Pokemon TCG Pocket
According to the site's own tips on identifying fake cards, "around 80% of counterfeits" can be identified purely based on the reverse card art being the wrong shade of blue (usually fakes are lighter blue than the real thing)
Card Slinger 3.0 for MTG / ManaBox App- Easily scan in bulk quantities of cards by hand - Now for sleeved and un-sleeved cards You MUST print the base and insert in transparent or white filament, it will not work properly otherwise
Yes, only drawing two cards from this isnt the biggest hand refill, but the ability to give a large creature trample without going down in cards helps you keep up with the rest of the table