Pokemon cards can be rare for a number of reasons
This is where Koffing, Weezing, and Koga come in, as Weezing can set off its Gas Leak ability which will poison your opponents active Pokmon for no cost
BPhillipYork: This doesn't really seem to work for itself that well, it gives out rad counters but the player who you hand them to is likely to run out of them in a turn or two, and it doesn't have a continuing source of rad counters, so it's a 4/4 with ward 2 that hands out 4 rad counters but no way to add more, so unless you're planning to flicker this or reanimate it repeatedly it seems dangerous
2 Thirsting Roots A textbook example of a card thats good early and good late, Thirsting Roots serves two valuable functions in green decks
These were the thorns from this set for me and in the grand scheme of things they are minor when compared to all of the set's upside
Card Condition Cards in near mint or mint condition are worth more