The Pros: Convenience: The process is often as simple as dropping your cards off at a store
Pokmon are much easier to recover from the discard pile than Trainers and Supporters, so discarding them is often only a short term gain
If an effect instructs you to draw multiple cards, the ability triggers after you draw whichever is the second one for the turn
Valgavoth, Terror Eater is perhaps one of the most brutal ward triggers around, forcing your opponent to sacrifice three nonland permanents if they want to target the Elder Demon with any of their spells
It is also fairly hard to use it well, inexperienced people will end up with a handful of forests far too quickly
Non-Foil Cards And, of course, there are double-sided tokens, too