The easiest things to check for are bends and dings on the card
While it should be able to avoid accidentally leaking cards itself and can potentially punish leakers (especially the source of the leaks, who have likely signed an NDA) to try to keep others from following suit, all it takes is a single person from the massive supply chain who takes a Magic card from an idea in Mark Rosewater's brain to your kitchen tableR&D employees, printers, translators, distributors, vendors, tournament organizersto disregard their NDA and post something about what they have seen on the Internet for a leak to happen
Whether you steal permanents on the battlefield with Coercive Recruiter or cast their spells with Laughing Jasper Flint, this gives a big boost to everything you steal
"Dragon Master Knight", "Dragon Master Magia", "Cyberdark End Dragon", "Five-Headed Dragon", and "Phantasmal Sacred Beasts of Chaos" are tied with the highest ATK of all Fusion Monsters, with 5000 ATK each
For three Energy, Razor Leaf will do a good 60 damage, which is perfect for dealing with weak Basic Pokemon
Your local game store will give you money on the spot, and trading card websites will have representatives to go through your collection and generally grade your cards in a week or less before giving you an offer