I believe that there should be an option to search a card by attack effect, because for example, if you only want to see cards that are able to discard energy of a Pokemon of your own or your opponent’s, it will only show cards that have the effect, like Delinquent). It would save players a good deal of time when building decks if this was implemented, to be honest. After all, it seems that over at Bulbapedia they’ve given up on adding more moves for the ever-growing TCG sections/subpages of the “Moves Not in the Pokemon Games” article…