If you are looking for Pokmon cards in Osaka, I recommend visiting DenDen town in Nipponbashi as well as the Pokmon Center DX store above JR Osaka Station (it is on the 13th floor.) There are also some pokemon card vending machines in Osaka Station
However, its perks are too great to ignore
Since decayed tokens only get one combat to attack, you have to be wise about how you utilize them
Having it on the battlefield does more than a normal counterspell in your hand, however, as just having it around will usually discourage opponents from playing their most powerful spells
you want it to get to the last trigger, because boy things sure can happen
This is because the templates themselves are mostly low resolution, but also that it will purposely lower the resolution of any image added