Sets like "Surging Sparks" are costing players almost $300 per booster box at local hobby shops, and that is just the tip of the iceberg, as sets from only a few years ago can sometimes approach $1000 per box
FORGET WHAT YOU THINK YOU KNOW It can be easy to understate the impact of a mechanic like this, which lessens the pressure of mana screw with little deck-building cost
For instance, you can run four Pikachu and four Pikachu ex because they have different names
Secret Rare - Collector numbers exceeding the set total (e.g., 198/193)
Still, this kind of library manipulation at this low of an opportunity cost is just too much, so I would not be surprised at all to eventually see it banned in Modern, as it already is in Pioneer and Standard
Todays planeswalker would probably scoff at all these calculations and tell us to go outside