Take Faithless Looting, for example: you draw two cards, but you have to discard two, and you used up the Faithless Looting
This card helps solve that problem, acting as both early interaction and a late-game finisher
As mentioned, sometimes cards just arent included in pokemon-cards database for whatever reason, and if the first female Pikachu was on a jumbo, SOL because the site doesnt seem to ever include jumbos.
As such, unless there's a bunch of spicy things in graveyards that folks feel they can get their hands on (and they don't understand that you could just steal them out from under them with your copies that resolve first), I would expect most people to say no to letting you copy reanimation spells, and I think that they would be right to do so
The Perfect Collection for your Pokemon Fan - All NM condition and English!