Earlier quoted context omitted.
> maybe it's one of those things where you "can't" but actually you can Like how you "can't" patent stuff with prior art but then, somehow, big companies seem to be granted patents for things with plenty of prior art all the time?
Some of it is that "getting a patent" isn't always a high bar, and the real bar is "successfully using a patent in a lawsuit". Patent examiners don't have the time and resources to thoroughly vet every application, so there are a lot of patents granted that are pretty much worthless. In this specific case I don't know. I would have to ask.
Which is a big fucking problem, to be honest. I would not want to enter a lawsuit with Nintendo to try to convince a judge that the patent I'm clearly violating is invalid.
If I was making a game with capture/summon mechanics and got a call from Nintendo, I would probably take capture/summon mechanics out of my game if their lawyers were threatening enough. That's the value in unenforceable patents.